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Sodium Lamp Kit
Sodium Lamp Kit (Product Code: SCL/AG26-119) is a low-pressure sodium discharge light source used to give monochromatic yellow light for optics experiments in physics and chemistry laboratories. It uses a 45 W sodium discharge tube housed in a metal shield with a 25 mm diameter aperture, for 200–250 V AC supplies. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, as part of its optics lab equipment for India and overseas buyers.
Specifications
| Parameter | Detail |
|---|---|
| Lamp type | Low-pressure sodium tubular gas-discharge lamp |
| Tube rating | 45 W sodium discharge tube |
| Housing | Metal shield with a 25 mm diameter aperture |
| Supply | For use on 200–250 V AC supplies |
| Control gear | Designed to operate with a matching electrical ballast/transformer |
| Applications | Physics and chemistry laboratory experiments, optical polarimetry, monochromatic lighting, scientific demonstrations |
| Product code | SCL/AG26-119 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Sodium Lamp Used For?
The light from a low-pressure sodium lamp is concentrated in a narrow yellow band, the sodium D lines, so it serves as a reference source wherever one known colour is needed. Physics students shine it on the slit of a spectrometer to measure prism angles and refractive index, and use it for interference work such as Newton's rings. In chemistry, it is the traditional light for a polarimeter measuring the optical rotation of sugar and other solutions.
Always run the lamp through its matching ballast or transformer, never straight from the socket. Give it time after switching on until the yellow output is steady, then turn the 25 mm aperture towards the slit or instrument being lit. Avoid switching it on and off repeatedly during a practical, and let the shield cool before the lamp is moved.
What to Specify When Ordering
- The mains supply at your site (the lamp is for 200–250 V AC supplies).
- Whether a matching ballast, transformer or spectral lamp power supply should be quoted with the lamp.
- The number of kits, and the spectrometers or polarimeters they will serve.
Supplier
Jain Scientific Equipments Private Limited, known by its trading name ScienceLab, supplies the Sodium Lamp Kit from Ambala, Haryana, to physics and chemistry departments, universities, research laboratories and dealers in India and international markets. Buyers who list the instruments the lamp will light can have the power arrangement discussed at quotation stage. Read about the company on the ScienceLab profile.
Related Physics Lab Equipment
These products are used with a sodium light source in optics practicals, or offer another way to set one up:
- Sodium Spectral Lamp — another sodium light source to compare.
- Spectral Lamp Power Supply with Lamp Holder — power and mounting for spectral lamps; ask us about compatibility.
- Spectro Meter — measures angles of deviation using the yellow sodium light.
- Prism, Borosilicate Glass — for refractive-index measurements on the spectrometer table.
More optics and light sources are listed under Physics Lab Equipment.
Frequently Asked Questions
What wattage is the tube in the Sodium Lamp Kit?
The Sodium Lamp Kit uses a 45 W low-pressure sodium discharge tube. The tube sits inside a metal shield, and light leaves through a 25 mm diameter aperture that can be turned towards the slit of an optical instrument.
What mains supply does the Sodium Lamp Kit need?
The Sodium Lamp Kit is for use on 200–250 V AC supplies. It is designed to operate through a matching electrical ballast or transformer rather than directly from the socket, so confirm your supply and control gear when ordering.
Is a ballast included with the Sodium Lamp Kit?
The description of the Sodium Lamp Kit says it works with a matching ballast or transformer but does not state whether one is packed with it. Please ask us through the contact page so the quotation shows exactly what is included.
What is the Sodium Lamp Kit used for?
The Sodium Lamp Kit provides monochromatic yellow light for physics and chemistry laboratory experiments, optical polarimetry and general monochromatic lighting. Typical uses include spectrometer, polarimeter and interference practicals where a single known wavelength is needed.
Who supplies the Sodium Lamp Kit?
The Sodium Lamp Kit is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, to schools, colleges, universities and research laboratories. Dealers and institutions in India and international markets can request quotations directly.
How should the Sodium Lamp Kit be handled after use?
Switch the Sodium Lamp Kit off and let the metal shield cool before moving or packing it, because discharge lamps run hot. Handle the kit gently, as the tube inside is a glass gas-discharge lamp, and store it in a dry place.
Request a Quote
For a quotation on the Sodium Lamp Kit, write to us on the contact page with your quantity and mains supply, or place it in the enquiry cart alongside a spectrometer or prism for a single combined quote.
Last updated: 24 September 2026
