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Not sure which light suits your room?

Send us a photo of the space on WhatsApp or visit the showroom. We will suggest the right fitting, wattage and colour.

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Buy LED Lights Online in Kolkata

Every LED light from Diamond Electrical Industries in one place: COB downlights, profile lights, panels, underwater lights and artificial skylights. See the whole range switched on at our Esplanade showroom, or order online.

How to Choose the Right LED Light for Your Space

Choosing a light is easier when you start with the room, not the product. A bedroom in a Salt Lake flat, a saree counter on Gariahat Road and a rooftop pool in New Town all need different light. The steps below help you narrow down the range before you buy LED lights online, and the table shows where each category starts in price.

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1. Decide what the light has to do

Most rooms need three kinds of light. General light fills the room, task light helps you cook or read, and accent light draws the eye to a shelf, a painting or a display.

  • COB downlights handle general and focused light inside a false ceiling.
  • LED profile lights give a clean line of cove or accent light along a ceiling or wall.
  • LED panel lights spread soft, even light across offices, kitchens and corridors.

2. Pick the colour of the light

Colour temperature works like the difference between the warm glow of a diya and the white light of a hospital corridor. Warm White (2700K) feels relaxed and suits bedrooms and living rooms. Natural White (4000K) is clear without feeling harsh, so it suits kitchens and study tables. Cool White (6000K) feels crisp and suits bathrooms, workshops and offices.

If you cannot decide, a 3-in-1 downlight lets you choose between all three colours from a single fitting.

3. Match the wattage to the room

Think of lumens as the volume of a speaker and watts as the electricity needed to run it. For small accents inside shelves and niches, 1W to 3W spots are usually enough. For general light in a typical bedroom or living room, most people choose downlights between 7W and 12W and space several across the ceiling.

Larger rooms and high ceilings need more light, so share the room size with our team before you order and we will suggest the number of fittings.

4. Check where the light will be installed

Bathrooms, balconies and gardens face water and the humid Kolkata monsoon, so check the IP rating before you buy. Pools need fittings built to work under water, such as our underwater lights.

For inner rooms with no window at all, an artificial skylight brings the look of a real sky to the ceiling.

LED Lights Price Guide

The table below updates automatically from our store, so the LED lights price you see here always matches the products above.

CategoryDesignsStarting from
COB Downlights57₹136
LED Profile Lights14₹89
Underwater Lights4₹4,720
Artificial Skylight6₹17,110
Smart Home Gateways2₹2,065
Track Lights23₹118
LED Strip Lights9₹266
Chandeliers and Pendants16₹1,534
Wall Lights18₹325
Flood Lights2₹301
Outdoor Lights10₹266
Bay Lights5₹1,062
Bulbs and Tubes26₹30
Task and Accent3₹295
Drivers and Power Supplies8₹236
Foot Lights2₹413
Gate Lights8₹0
Fountain and Spike3₹531
Highlighters3₹1,180
Decorative Lights47₹224
Recessed Panel Lights22₹100
Street Lights4₹531
Surface Panel Lights14₹148

Why Buy From Diamond Electrical Industries

Diamond Electrical Industries has lit homes, shops and offices across Kolkata since 1958 and has worked with LED lighting since 2005. The same team that runs our showroom chooses every model on this page, so you can ask about a fitting before you order it and get support after it is installed.

You can buy LED lights online here, or come to 11A, Esplanade East, above K.C. Das, and see them switched on first.

Architects, interior designers and contractors can send a project lighting enquiry for larger orders.

Frequently Asked Questions

Can I see the lights before I buy LED lights online?

Yes. Visit our showroom at 11A, Esplanade East, above K.C. Das, Kolkata 700069, to see the range switched on before you order. You can also call or WhatsApp +91 90388 08043 with a photo of your room and ask which fitting suits it.

How much do LED lights cost at Diamond Electrical Industries?

It depends on the type of light. COB downlights start from ₹136, while specialised fittings such as underwater lights and artificial skylights cost more. The price guide on this page shows the starting price for every category and updates automatically.

What does 3-in-1 mean on an LED downlight?

A 3-in-1 downlight gives Warm White (2700K), Natural White (4000K) or Cool White (6000K) light from one fitting. It suits rooms that change use through the day, and you do not have to choose one colour before installation.

Should I choose COB downlights or LED panel lights?

Choose COB downlights for focused, low-glare light and a neat look in a false ceiling. Choose LED panel lights for soft, even light across a wide area, such as an office or a kitchen. Many homes use both: panels for overall light and COB downlights for focus and accents.

Does Diamond supply lighting for commercial projects?

Yes. Diamond Electrical Industries supplies lighting for shops, offices, hotels and residential projects. Architects, interior designers and contractors can share their requirement through our commercial and project lighting page, and the team will suggest suitable fittings.

  • Lighting Kolkata since 1958 Over six decades of lighting homes, shops and offices
  • See it switched on Showroom at 11A, Esplanade East, above K.C. Das
  • Talk to a person Call or WhatsApp +91 90388 08043
  • Projects welcome Supply for architects and contractors