RETROFIT TUBE
9W (2 ft)
₹150
Sale price
₹150
Regular price
₹300
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RETROFIT TUBE
₹150
Sale price
₹150
Regular price
₹300
The Retrofit Tube is an LED tube made to replace old fluorescent tubes, giving brighter light while using much less power.
- 9–22W
- 2-year warranty
- 2-year replacement warranty
- See it switched on at our Kolkata showrooms
- Secure checkout
Project or bulk order? Get trade pricing
About the RETROFIT TUBE
Overview
The Retrofit Tube is an LED tube made to replace old fluorescent tubes, giving brighter light while using much less power.
Variants & Specifications
Choose the 9W tube in 2 ft or the 22W tube in 4 ft. Both give Cool White (6000K) light and carry a 2-year warranty.
Ideal Applications
Ideal for upgrading tube lights in homes, offices, classrooms, shops and godowns. A simple LED retrofit tube light upgrade for buildings across Kolkata.
Specifications
| Model Name | RETROFIT TUBE |
|---|---|
| Wattage | 9W, 22W |
| Length | 2 ft, 4 ft |
| Light colour | Cool White (6000K) |
| Warranty | 2 years |
Need a spec sheet, IES file or help choosing? Ask us on WhatsApp
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LED Retrofit Tube: 2 ft and 4 ft Replacement for Old Fluorescent Tubes
Many Kolkata offices, schools and homes still run old fluorescent tube lights that flicker, hum and waste power. The LED Retrofit Tube replaces them inside the existing fitting, giving brighter light for far less electricity.
It comes in 9W (2 ft) for ₹300 and 22W (4 ft) for ₹400, in cool white, with a 2-year warranty. See all options in our LED tube lights collection.
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Retrofit Tube at a Glance
The LED Retrofit Tube replaces old fluorescent tubes in existing fittings. It comes in 9W (2 ft) for ₹300 and 22W (4 ft) for ₹400, in Cool White (6000K), with a 2-year warranty, for homes, offices, classrooms, shops and godowns.
Retrofit Tube Specifications and Price
- Wattage and length: 9W (2 ft), 22W (4 ft)
- Light colour: Cool White (6000K)
- Use: Replacement for fluorescent tubes
- Warranty: 2 years
| Length | Wattage | Price |
|---|---|---|
| 2 ft | 9W | ₹300 |
| 4 ft | 22W | ₹400 |
Key Features of the LED Retrofit Tube
- Fits existing tube light fittings
- Uses much less power than fluorescent tubes
- No flicker or hum
- Bright cool white light
- 2-year warranty
Why Replace Fluorescent Tubes with LED
A 4 ft fluorescent tube with its choke typically draws more power than a 22W LED tube for similar light, and it dims and flickers with age. Switching to LED cuts the bill, removes flicker and lasts much longer, which matters most in offices and schools where lights run all day.
Retrofit Tube or New Batten?
Choose the retrofit tube to reuse an existing fitting. If the old fitting is rusty or damaged, a complete batten such as the T8 X-Tend gives a neater, slimmer result.
Compare Diamond LED Tube Lights
| Model | Wattage | Type / length | Light colour | Price |
|---|---|---|---|---|
| Retrofit Tube | 9W, 22W | 2 ft, 4 ft replacement tube | Cool white | ₹300 to ₹400 |
| T8 X-Tend | 10W to 40W | Slim T8 batten | Warm, natural | ₹240 to ₹560 |
| T8 Celeste | 10W to 40W | 1 ft to 4 ft T8 | 3 whites or 3-in-1 | ₹400 to ₹900 |
| T5 X-Trim | 5W, 10W, 22W | Slim T5 for coves | 3 whites + 5 colours | ₹160 to ₹220 |
| X-Pure | 18W to 100W | High-output tube | 3 whites or 3-in-1 | ₹500 to ₹2,000 |
| T13 X-Nova | 50W | Wide T13 profile | 3 whites | ₹1,900 |
| T9 | 50W, 100W | Black body T9 | 3 whites | ₹1,600 to ₹3,000 |
| Magnum | 10W to 50W | Gold or white designer | 3 whites or 3-in-1 | ₹700 to ₹2,400 |
| Crescent | 25W, 50W | Designer tube | 3 whites or 3-in-1 | ₹1,300 to ₹1,600 |
| Subway | 1 or 2 tubes | IP65 weatherproof fitting | Cool, warm | ₹800 to ₹2,000 |
Best Uses for the LED Retrofit Tube
- Offices and classrooms
- Homes with old tube fittings
- Shops and godowns
- Hospitals and clinics
- Staircases and corridors
How to Install the LED Retrofit Tube
- Switch off the supply at the MCB.
- Remove the old fluorescent tube from the fitting.
- Check whether the old choke and starter need to be bypassed for the LED tube. Our team or your electrician can confirm this for your fitting.
- Fit the LED retrofit tube into the existing holders and rotate it to lock.
- Switch on and test.
Buy the LED Retrofit Tube in Kolkata
Diamond Electrical Industries has supplied lighting to Kolkata homes, shops and projects since 1958. Order the LED Retrofit Tube online for delivery, or see it switched on at our Esplanade showroom at 11A, Esplanade East, above K.C. Das, Kolkata 700069.
Changing tube lights across an office, school or factory? Send your list through our project lighting service for help choosing wattages and quantities.
Frequently Asked Questions
What is the price of an LED retrofit tube?
The Diamond LED Retrofit Tube costs ₹300 for the 9W 2 ft tube and ₹400 for the 22W 4 ft tube, with a 2-year warranty.
What is an LED retrofit tube?
An LED retrofit tube is an LED tube made to replace a fluorescent tube inside the existing fitting, so you do not need to change the whole light.
Can I put an LED tube in an old tube light fitting?
Yes, that is what a retrofit tube is for. In many fittings the old choke and starter should be bypassed, so check with an electrician.
How much power does an LED tube save?
An LED tube uses much less power than a fluorescent tube with its choke for similar light, which lowers your electricity bill.
Which length retrofit tube do I need?
Measure your old tube. Standard lengths are 2 ft and 4 ft, and the Diamond Retrofit Tube comes in both.
Is there a complete LED tube light with fitting?
Yes. The T8 X-Tend and T8 Celeste are complete LED tube lights with their own fitting.
Where can I buy LED tube lights in Kolkata?
Buy LED tube lights from Diamond Electrical Industries online at dewdiamond.com or at the Esplanade showroom, 11A, Esplanade East, Kolkata 700069.