PN Junction Diode (Product Code: SCL-433/113) is a semiconductor diode experiment kit used to study a PN junction diode in forward and reverse bias in school and institute physics labs. Two round meters on the board measure voltage and current, knobs set the applied voltage, and an inbuilt IC-regulated power supply provides the DC. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.

Specifications

What Is the PN Junction Diode Apparatus Used For?

In forward bias, students raise the voltage with the knobs and see that almost no current flows until the knee voltage, after which the current climbs steeply. In reverse bias only a very small current flows. Plotting both sets of readings gives the diode's V-I characteristic curve, from which students find the knee voltage and the forward resistance.

With the supply and meters built in, the kit sets up quickly and is portable enough to move between rooms. Begin each run at the lowest voltage setting, change the voltage slowly near the knee, and switch between forward and reverse connections only with the voltage turned down. It is a standard semiconductor diode kit for physics practicals, and pairs well with a Zener diode kit.

OEM Manufacturer

Jain Scientific Equipments Private Limited trades as ScienceLab and is the OEM (original equipment manufacturer) of this PN Junction Diode apparatus. It is made and assembled at the company's own licensed factory at Saha, Ambala, Haryana, India, then supplied factory-direct to schools, institutes, dealers and importers. Institutional and tender buyers who need vendor registration details can use GSTIN 06AAECJ8618A1ZT and LEI 3358004HRD1JIVXKYX49. See the ScienceLab company profile.

Related Physics Lab Equipment

Items used with the PN junction diode kit and in related practicals:

• Semiconductor Diode — loose diodes for building circuits
• Zener Diode Experiment Circuit Board — the Zener characteristics practical
• Zener Diode — components for extension work
• Connecting Wire — wiring for extension circuits

More semiconductor and electronics apparatus is in the Physics Lab category.

Frequently Asked Questions

What does the PN Junction Diode apparatus measure?
The PN Junction Diode apparatus (SCL-433/113) measures the current through a semiconductor diode at different applied voltages in forward and reverse condition. Its two round meters, a voltmeter and an ammeter, give the readings used to plot the diode's V-I characteristic.

Does the PN Junction Diode kit need a separate DC power supply?
No separate DC supply is needed for the PN Junction Diode kit because it has an inbuilt IC-regulated power supply, with voltage set by the knobs on the board. Confirm the mains input required through the ScienceLab contact page when you request a quotation.

Is the PN Junction Diode apparatus portable?
Yes, the PN Junction Diode apparatus is described as portable and easy to use in physics and electronics lab experiments in schools or institutes. With meters and supply on one board, it can be moved between labs and set up quickly.

How should the PN Junction Diode kit be used safely?
Start the PN Junction Diode kit at its lowest voltage setting, increase the voltage slowly while watching the ammeter, and change between forward and reverse connections only with the voltage turned down. Switch off and disconnect the kit after each practical.

Who manufactures the PN Junction Diode apparatus?
The PN Junction Diode apparatus is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own factory in Saha, Ambala, Haryana, India. Schools, institutes, dealers and importers receive quotations and repeat supplies direct from the manufacturer.

Can calibration details be provided for the PN Junction Diode meters?
Calibration-certificate availability for the PN Junction Diode meters should be discussed with us before you order. State the requirement and any meter ranges your syllabus needs in your enquiry, and the manufacturer's quotation will confirm what can be supplied.

Request a Quote

Request a PN Junction Diode quotation direct from the manufacturer through the ScienceLab contact page, or add the kit to the enquiry cart with a Zener diode board for a complete semiconductor practical set.

Last updated: 24 September 2026

Zener Diode (Product Code: SCL-435/114) is a board-mounted semiconductor diode used to study reverse breakdown and voltage regulation in school and college physics laboratories. Students and lab instructors use it for diode characteristic practicals, and it is listed with a working range of 0–10 V. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, as a routine item of physics practical equipment for CBSE and other school boards.

Specifications

What Is the Zener Diode Used For?

A Zener diode conducts like an ordinary diode in the forward direction, but it is designed to work in reverse bias once its breakdown voltage is reached, holding the voltage across it almost constant. In the physics lab this makes it the standard component for plotting the reverse characteristic curve and for showing how a simple voltage regulator works. Having the diode mounted on a board makes the small part easier to handle and wire into a circuit than a loose component.

A typical set-up connects the board in reverse bias through a series resistor to a DC source, with a voltmeter across the diode and a milliammeter in series. Students raise the supply in small steps and note the point where current starts to climb sharply. Always keep a series resistor in the circuit, because above breakdown the current is limited only by the external circuit.

What to Specify When Ordering

• Quantity: one Zener Diode board per student group or bench, plus spares.
• Range: check that the listed 0–10 V range suits the experiment in your practical manual.
• Board only or full set-up: say whether you need just this Zener Diode or the complete Zener Diode Experiment Circuit Board.
• Instruments: list any voltmeters, milliammeters or DC sources you want quoted alongside it.

Supplier

Jain Scientific Equipments Private Limited, which trades as ScienceLab, supplies the Zener Diode from Ambala, Haryana, to schools, colleges, training institutes and dealers in India and international markets. Semiconductor parts like this are usually ordered together with meters, power sources and connecting leads, so one enquiry can cover a complete diode bench. Read more on the ScienceLab company profile.

Related Physics Lab Equipment

These items are used with a Zener diode when setting up the reverse characteristic experiment:

• Zener Diode Experiment Circuit Board — a ready experiment board for plotting the full Zener curve.
• PN Junction Diode — compare an ordinary junction diode's reverse behaviour with Zener breakdown.
• Voltmeter — reads the voltage across the diode at each step.
• Milliammeter — measures the small reverse current as breakdown approaches.
• Battery Eliminator 12 Volt — a mains-operated DC source for powering the test circuit.

Browse the full Physics Lab range for other practical apparatus.

Frequently Asked Questions

What is the range of this Zener Diode?
The Zener Diode (SCL-435/114) supplied by ScienceLab is listed with a range of 0–10 V. Check this against the circuit in your practical manual, and tell us before quoting if your experiment needs a different working range.

Is the Zener Diode supplied mounted on a board?
Yes. This Zener Diode comes mounted on a board, which makes the small component easier to handle, label and connect in a student circuit than a loose diode with bare wire leads.

What experiment is the Zener Diode used for?
The Zener Diode is mainly used to draw the reverse characteristic curve and find the reverse breakdown voltage, a standard Class 12 physics practical. It also demonstrates the principle of a simple voltage regulator in electronics lessons.

What else do I need to use the Zener Diode?
To use the Zener Diode you need a DC source, a series resistor, a voltmeter, a milliammeter and connecting wires. List these in your enquiry and ScienceLab can include them in the same quotation for the whole bench.

Who supplies the Zener Diode?
The Zener Diode is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, which also offers the complete Zener Diode Experiment Circuit Board and the meters used with it, so a diode bench can be sourced from one company.

What should a quotation request for the Zener Diode include?
A quotation request for the Zener Diode should give the product code SCL-435/114, the quantity, the delivery location and any meters or power sources you want added. Send it through the contact page or the enquiry cart.

Request a Quote

To order the Zener Diode, send the quantity and delivery location through the ScienceLab contact page, or add it to the enquiry cart together with the other physics lab items you need.

Last updated: 24 September 2026

Carbon Resistance of Different Values (Product Code: SCL-437/115) is a range of fixed carbon resistors used to build and test simple circuits in school and college physics and electronics labs. Offered in different resistance values, it lets teachers set up Ohm's law, series and parallel combination and current-limiting exercises with the value each circuit needs. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, as a dependable part of any Ohm's law experiment kit in Indian school labs.

Key Details

What Are Carbon Resistors Used For?

Carbon resistors limit and divide current in a circuit, so they turn up in almost every electricity practical. Students use them to verify Ohm's law, to find the equivalent resistance of series and parallel combinations, to build potential dividers and to protect LEDs and transistors from excess current. Because each resistor has a fixed value, calculated results can be compared directly with a meter reading.

Most carbon resistors carry coloured bands that give their nominal value, so reading the colour code is a useful exercise in its own right. Keep resistors sorted by value in labelled boxes, avoid bending the leads repeatedly close to the body, and check the power a resistor will dissipate before placing a small one across a higher-voltage supply.

What to Specify When Ordering

• Values: list the resistance values you need, or ask which values are currently available.
• Pieces per value: state how many of each value your student groups require.
• Other circuit items: mention any resistance box, rheostat or connecting wire to include in the same quotation.

Supplier

Jain Scientific Equipments Private Limited trades under the ScienceLab name and supplies Carbon Resistance of Different Values from Ambala, Haryana, to schools, colleges and dealers in India and international markets. Small components such as resistors are often added to larger apparatus orders, so they can travel with the rest of an electricity bench. Company background is on the ScienceLab profile page.

Related Physics Lab Equipment

Resistors are rarely used alone; these items complete a basic electricity bench:

• Resistance Box — selectable standard values to compare with fixed resistors.
• Ohm's Law Apparatus — a complete set-up for plotting voltage against current.
• Rheostat — variable resistance for adjusting the current in a circuit.
• Connecting Wire — joins resistors to meters and the power supply.
• Digital Multimeter — checks the actual value of each resistor before class.

See the complete Physics Lab category for more electricity apparatus.

Frequently Asked Questions

Which values are available in Carbon Resistance of Different Values?
Carbon Resistance of Different Values (SCL-437/115) is offered in several resistance values rather than a single rating. Tell us the values and quantities you need, or ask through the contact page which values are currently available before placing your order.

Can I request several resistor values in one order?
You can request several values of Carbon Resistance of Different Values in one enquiry. List each value with the number of pieces required, and ScienceLab will confirm what can be supplied so the quotation matches your practical schedule.

What experiments use carbon resistors?
Carbon Resistance of Different Values is used for verifying Ohm's law, studying series and parallel combinations, building potential dividers and limiting current through LEDs and transistors in school and college electricity practicals.

How do I identify the value of a carbon resistor?
The value of a carbon resistor is normally read from the coloured bands on its body, or measured directly with a multimeter. Checking each resistor with a multimeter before class is a good habit, because it also shows up any damaged piece.

Who supplies Carbon Resistance of Different Values?
Carbon Resistance of Different Values is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab) of Ambala, Haryana, India, which can pack resistors with the resistance boxes, rheostats and meters used in the same electricity experiments.

Do you supply resistors in bulk for school labs?
Bulk quantities of Carbon Resistance of Different Values can be quoted for school labs, colleges and dealers. Send the values, pieces per value and delivery location through the contact page so a quotation can be prepared.

Request a Quote

For a quotation and availability of Carbon Resistance of Different Values, write to us through the contact page with the values and quantities required, or place the item in the enquiry cart with the rest of your order.

Last updated: 24 September 2026

NPN Transistor (Product Code: SCL-439/116) is a bipolar junction transistor used to demonstrate switching and amplification in school, college and hobby electronics labs. Students use it in amplifier circuits, mini and major electronics projects and DIY builds, and it is listed with a maximum power dissipation of 625 mW and a collector current of 0.6 A. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, alongside its physics lab equipment for India and international markets.

Specifications

What Is the NPN Transistor Used For?

In an NPN transistor a small current flowing into the base controls a much larger current between collector and emitter. That behaviour lets students build a simple amplifier, use the transistor as an electronic switch for a lamp or relay, and plot input and output characteristics in the common-emitter configuration, a standard senior-secondary practical. Its listed rating suits the low-current, high-speed circuits used in electronics projects.

When wiring the circuit, identify the emitter, base and collector from the pin diagram for the value supplied, always place a resistor in the base lead, and keep collector current and power well inside the 0.6 A and 625 mW limits. Readings taken with a milliammeter and voltmeter at small steps give smooth characteristic curves for the practical record.

What to Specify When Ordering

• Transistor value: state the value or type number your circuit diagram specifies, as the NPN Transistor is offered in different values.
• Quantity: pieces per student group, with spares for project work.
• Complementary type: say if PNP transistors are also needed.
• Bench items: meters and a DC source to be quoted along with it.

Supplier

Jain Scientific Equipments Private Limited, known by its trading name ScienceLab, supplies the NPN Transistor from Ambala, Haryana, to schools, engineering colleges, polytechnics, project students and dealers in India and international markets. Transistor orders are often combined with resistors, meters and power sources, so a whole electronics bench can be quoted at once. The ScienceLab company profile has more about the company.

Related Physics Lab Equipment

Pair the NPN transistor with these items for characteristic curves and project circuits:

• PNP Transistor — the complementary type for push-pull and comparison experiments.
• Transistor (for high school) — another transistor listing for school-level demonstrations.
• Carbon Resistance of Different Values — base and load resistors for the circuit.
• Milliammeter — measures base and collector current.
• Battery Eliminator 12 Volt — DC supply for the transistor bench.

More apparatus for school practicals is listed under Physics Lab.

Frequently Asked Questions

What are the ratings of the NPN Transistor?
The NPN Transistor (SCL-439/116) is listed with a maximum power dissipation of 625 mW and a collector current of 0.6 A. Keep your circuit well inside these limits and use a base resistor to protect the transistor during experiments.

Is the NPN Transistor available in different values?
Yes, the NPN Transistor is offered in different values. Quote the value or type number shown in your circuit diagram when you enquire, so that the transistor supplied matches your practical or project.

What is an NPN transistor used for in the lab?
An NPN Transistor is used as an amplifier, as an electronic switch and for plotting common-emitter characteristics. It also suits electrical and electronic mini or major projects and DIY builds where a low-current, high-speed transistor is needed.

What is the difference between an NPN and a PNP transistor?
An NPN Transistor switches on when its base is made positive relative to the emitter, while a PNP transistor switches on with a base more negative than its emitter. Supply polarities are therefore reversed between the two types.

Who supplies the NPN Transistor?
The NPN Transistor is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, a supplier that engineering colleges, polytechnics and project students use for transistors together with meters and power sources.

Can the NPN Transistor be ordered in bulk?
Bulk orders of the NPN Transistor can be quoted for labs, training centres and dealers. Send the transistor value, total quantity and delivery location through the contact page or enquiry cart to receive a quotation.

Request a Quote

Ask for an NPN Transistor quotation through the contact page, giving the value and quantity, or add it to your enquiry cart with any resistors and meters you need.

Last updated: 24 September 2026

PNP Transistor (Product Code: SCL-441/117) is a bipolar transistor of the PNP type used to teach switching, amplification and complementary circuit design in physics and electronics labs. It is offered in different values and is described as having fast switching speed and high power and current handling capability, which makes it useful for classroom practicals and student projects alike. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.

Key Details

What Is the PNP Transistor Used For?

A PNP transistor conducts when its base is pulled lower than its emitter, so conventional current flows from emitter to collector. Students use it to compare characteristics with an NPN device, to build high-side switches that connect a load to the positive supply, and to understand push-pull output stages in which one PNP and one NPN transistor share the work.

Before wiring, check the pin order for the value supplied, because emitter, base and collector positions differ between transistor types. Connect the emitter towards the positive rail, include a base resistor, and use a multimeter's diode range to check the junctions if a transistor seems faulty. The same checks apply to every transistor used with an AC DC circuits experiment kit.

What to Specify When Ordering

• The transistor value from your circuit diagram or project parts list.
• Whether matching NPN transistors are needed for complementary or push-pull circuits.
• Pieces per bench, allowing a few spares for student wiring errors.

Supplier

ScienceLab is the trading name of Jain Scientific Equipments Private Limited, which supplies the PNP Transistor from Ambala, Haryana, to schools, colleges, polytechnics and component dealers in India and international markets. Buyers completing vendor registration can use the supplying company's details: CIN U29309HR2020PTC087597 and GSTIN 06AAECJ8618A1ZT. Learn more on the ScienceLab company profile.

Related Physics Lab Equipment

These items support PNP transistor practicals and complementary circuit work:

• NPN Transistor — the complementary partner for push-pull stages and side-by-side comparison.
• Semiconductor Diode — for studying a single junction before moving on to transistors.
• Carbon Resistance of Different Values — base and collector resistors.
• Voltmeter — measures base-emitter and collector-emitter voltages.
• Standard Digital Multimeter — checks junctions and circuit values.

The Physics Lab category lists further electronics and electricity apparatus.

Frequently Asked Questions

What features are listed for the PNP Transistor?
The PNP Transistor (SCL-441/117) is listed with fast switching speed, low error voltage, full-voltage operation, high power and current handling capability and advanced process technology. For the exact ratings of a particular value, ask us before ordering.

Is the PNP Transistor offered in different values?
Yes, ScienceLab offers the PNP Transistor in different values. Electrical ratings vary from one value to another, so share your circuit's parts list and we will confirm which value can be supplied for your practical or project.

How is a PNP transistor connected in a circuit?
A PNP Transistor is connected with its emitter towards the positive supply, and it conducts when the base is made more negative than the emitter. A base resistor should always be used to limit the base current.

Can I use the PNP Transistor with an NPN transistor?
Yes, the PNP Transistor is commonly paired with an NPN transistor in complementary and push-pull circuits, where each device handles one half of the signal. ScienceLab can quote both types together in one enquiry.

Who supplies the PNP Transistor?
The PNP Transistor is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab) from Ambala, Haryana, India, to educational institutions, project students and component dealers who need transistors alongside meters, resistors and other electricity apparatus.

What details should a PNP Transistor enquiry include?
A PNP Transistor enquiry should include the code SCL-441/117, the transistor value, the number of pieces and the delivery address. Mention any matching NPN transistors or meters so a single quotation covers the full requirement.

Request a Quote

Send your PNP Transistor requirement through the contact page, or add the item to the enquiry cart and submit it with your other physics lab needs.

Last updated: 24 September 2026

Semiconductor Diode (Product Code: SCL-443/118) is a two-terminal electronic component used to demonstrate one-way current flow and rectification in physics and electronics laboratories. Offered in different values, it serves students plotting forward and reverse characteristics and building simple rectifier circuits, and it is described as reliable in operation with low maintenance. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, for schools assembling a semiconductor diode kit for physics practicals.

Key Details

What Is the Semiconductor Diode Used For?

A semiconductor diode lets current pass easily in one direction and blocks it in the other. In the lab it is used for the I–V characteristic experiment, where students record current against voltage in forward and reverse bias, and for half-wave and full-wave rectifier demonstrations that turn AC into pulsating DC. It also shows how a circuit can be protected against a reversed battery connection.

Mark the cathode end, usually shown by a band on the body, before wiring, and include a series resistor so forward current stays within safe limits. Forward current rises quickly just above the knee voltage, so taking small voltage steps in that region gives a smoother curve. A milliammeter in series and a voltmeter across the diode give readings that tabulate cleanly.

What to Specify When Ordering

• The diode value or type number your experiment calls for.
• Number of pieces per bench, including spares.
• Whether a PN Junction Diode or Zener Diode is also required for comparison experiments.

Supplier

Jain Scientific Equipments Private Limited, trading as ScienceLab, supplies the Semiconductor Diode from Ambala, Haryana, to schools, colleges, laboratories and dealers in India and international markets. Departments equipping several benches at once can combine diodes with meters, resistors and power supplies in a single enquiry. Visit the ScienceLab company profile for more about the company.

Related Physics Lab Equipment

Useful companions for diode characteristic and rectifier experiments:

• PN Junction Diode — related diode item for the junction characteristics practical.
• Zener Diode — shows controlled reverse breakdown, which an ordinary diode avoids.
• LED — a light-emitting diode that makes forward conduction visible.
• Semiconductor Diodes (for high school) — another diode listing for school-level work.
• Milliammeter — measures forward current at each voltage step.

Explore the wider Physics Lab range for meters and power sources.

Frequently Asked Questions

Which values of Semiconductor Diode are available?
The Semiconductor Diode (SCL-443/118) is offered in different values. Share the type number or rating your experiment uses, and ScienceLab will confirm which values can be supplied before sending a quotation.

What experiment is the Semiconductor Diode used for?
The Semiconductor Diode is used to plot the forward and reverse bias I–V characteristic of a p-n junction and to demonstrate half-wave and full-wave rectification in school and college physics practicals.

How do I identify the terminals of the Semiconductor Diode?
On most semiconductor diodes the cathode is marked by a band on the body and the other end is the anode. For the Semiconductor Diode, confirm polarity with a multimeter's diode test before wiring it into a student circuit.

Does the Semiconductor Diode need maintenance?
The Semiconductor Diode is described as low-maintenance and reliable in operation. Store it dry, avoid bending the leads sharply at the body, and always use a series resistor so that excess current does not damage the junction.

Who supplies the Semiconductor Diode?
The Semiconductor Diode is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, which also offers the Zener, PN junction and light-emitting diodes that are often studied alongside it.

How can I get a quotation for the Semiconductor Diode?
Request a quotation for the Semiconductor Diode by sending the code SCL-443/118, the diode value, quantity and delivery location through the contact page, or add it to the enquiry cart with the rest of your physics items.

Request a Quote

Use the contact page to ask for a Semiconductor Diode quotation, or collect it in the enquiry cart with the meters and resistors for your diode bench.

Last updated: 24 September 2026

LED (Product Code: SCL-445/119) is a 5 mm light-emitting diode mounted on a board, used as a low-power indicator lamp in school circuits, physics practicals and science models. Students and teachers use it as an alternative to filament bulbs and to add colour to working models and projects. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, for both single-bench orders and school lab equipment bulk supply.

Specifications

What Is the LED Used For?

An LED glows only when current flows through it in the forward direction, so it works both as a light source and as a polarity indicator. In class it replaces a torch bulb in simple circuits, shows whether a switch or logic output is on, and demonstrates that a diode conducts one way only. In science fair models it adds coloured lighting with little heat and a small current draw.

Always connect the LED through a series resistor, because an LED placed straight across a cell or supply can pass too much current and fail. Identify the anode (positive) and cathode before connecting; a reversed LED simply stays dark, which is itself a useful lesson in polarity. Mounting the 5 mm LED on a board keeps this small component easy to handle and reuse across many practical sessions.

What to Specify When Ordering

• Number of board-mounted 5 mm LEDs per bench or per model.
• Whether loose LEDs, such as the separate white 5 mm listing, suit your project better than the board-mounted version.
• Any resistors, switches or power sources to include in the same quotation.

Supplier

Jain Scientific Equipments Private Limited, whose trading name is ScienceLab, supplies the board-mounted LED from Ambala, Haryana, to schools, hobby and model-making centres, colleges and dealers in India and international markets. Teachers building circuit kits often combine LEDs with cells, switches and resistors in one order. Find out more on the ScienceLab company profile.

Related Physics Lab Equipment

Items that complete a simple LED circuit or model:

• LED, 5 mm, White — a separate LED listing for white light.
• Simple Circuit Module LED Board Red — module version for modular circuit kits.
• Carbon Resistance of Different Values — the series resistor that limits LED current.
• Electric Switch — turns the LED circuit on and off.
• Connecting Wire — links the LED board to the cell or supply.

Browse more apparatus in the Physics Lab category.

Frequently Asked Questions

What size is the LED?
The LED (SCL-445/119) supplied by ScienceLab is a 5 mm light-emitting diode that comes mounted on a board, so students can handle and connect it easily in classroom circuits and science models.

Why use an LED instead of a bulb in school circuits?
An LED is a practical alternative to a filament bulb because it draws little current and runs cool, and it lights in one direction only, which also teaches diode behaviour. It is especially useful for adding colour to models.

Does the LED need a resistor?
Yes. The LED should always be connected through a suitable series resistor, because connecting it directly across a cell or supply can pass too much current and damage it. Choose the resistor value to match your supply voltage.

What can the LED be used for in models?
The 5 mm LED on board lights up signals, model houses, traffic-light displays and other working projects, adding colour to science fair models, and it serves as an indicator lamp in classroom circuits and logic demonstrations.

Who supplies the LED?
The board-mounted LED is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, which also supplies the resistors, switches and connecting wire needed to turn it into a working circuit.

How do I order the LED in quantity?
To order the LED in quantity, send the code SCL-445/119, the number of pieces and your delivery location through the contact page or enquiry cart. Add resistors, switches or cells to the same enquiry if needed.

Request a Quote

Place the LED in the enquiry cart with your other circuit items, or write to us through the contact page with the quantity required.

Last updated: 24 September 2026

Electric Switch (Product Code: SCL-447/120) is a panel-fixing switch used to open and close circuits on physics lab boards, electrical practicals and student projects. It is held in place by a ring that screws on, so it can be fitted through a hole in a board or panel and stays secure through repeated use. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, alongside its physics lab instruments for schools and colleges.

Key Details

What Is the Electric Switch Used For?

A switch lets students control a circuit without pulling out wires, which is quicker and tidier during practicals. The Electric Switch is fitted to circuit boards, model houses, demonstration panels and project enclosures to turn lamps, LEDs, small motors or buzzers on and off. In junior science classes it is also the simplest way to show the difference between an open and a closed circuit.

Fit the switch through a suitably sized hole in the board and tighten its screw-on ring so the body cannot turn in use. Wire it in series with the load, and disconnect the supply before changing any connections. Check the switch's rating with us before using it on anything other than low-voltage lab circuits.

What to Specify When Ordering

• Quantity per bench, demonstration board or model kit.
• The voltage and current your circuit will carry, so we can confirm the switch suits it.
• Whether one way keys, two way keys or knife switches are also needed.

Supplier

ScienceLab is the trading name under which Jain Scientific Equipments Private Limited supplies the Electric Switch from Ambala, Haryana, to schools, colleges, model makers and dealers in India and international markets. Institutions wiring several demonstration boards can order switches together with wire, lamps and power sources. Company details are on the ScienceLab company profile.

Related Physics Lab Equipment

Other ways to make and break a circuit, and the items used alongside them:

• One Way Key — plug-type key for making and breaking contact in physics circuits.
• Two Way Key — for switching between two circuit paths.
• Knife Switch – Single Pole, Single Throw — an open-frame alternative for demonstration circuits.
• Connecting Wire — wiring between the switch and the load.
• Electric Tester — a quick check for live conductors before handling wiring.

See the Physics Lab category for the complete range.

Frequently Asked Questions

How is the Electric Switch fixed in place?
The Electric Switch (SCL-447/120) has a ring that screws on to hold it in place. The switch body passes through a hole in the board or panel and the ring is tightened so the switch stays firm during repeated use.

Where is the Electric Switch used in the lab?
The Electric Switch is used on circuit boards, demonstration panels, model houses and student projects to turn lamps, LEDs, motors and buzzers on and off, and to teach open and closed circuits in science classes.

Is the Electric Switch easy to install?
Yes, the Electric Switch is described as easy to install and easy to use. It needs only a mounting hole and its screw-on ring, and its bevelled design gives a neat finish on a board or panel.

What voltage can the Electric Switch handle?
The voltage and current rating of the Electric Switch is not stated on this page. Tell us the voltage and current your circuit uses through the contact page, and we will confirm whether this switch is suitable before you order.

Who supplies the Electric Switch?
The Electric Switch is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, for schools, model makers and dealers who also need keys, knife switches and wiring for electricity benches.

Can I order the Electric Switch with other circuit items?
Yes, the Electric Switch can be quoted together with keys, knife switches, connecting wire and power sources. List every item and quantity in one enquiry so a single quotation covers the whole electricity bench.

Request a Quote

For an Electric Switch quotation, contact us through the contact page or add the switch to the enquiry cart along with your wiring and power items.

Last updated: 24 September 2026