LED Lighting Buying Guide for Coimbatore Homes
No scriptLED lights use far less electricity than old incandescent bulbs and tube lights, and they last longer. But LED shops in Coimbatore carry hundreds of options: bulbs, tubes, panels, spotlights, strips and outdoor lights. This guide explains how to choose. We don't rank brands and prices change, so compare current models yourself.
Step 1: Lumens, Not Watts
Old bulbs were bought by watts because watts roughly told you the brightness. With LEDs that no longer works.
- Lumens (lm): how much light the lamp gives. This is what you want to compare.
- Watts (W): how much electricity it uses.
- Lumens per watt: efficiency. A higher number means more light for the same bill.
Check the lumen value printed on the box. Two 9 W bulbs from different makers can give noticeably different light.
Step 2: Choose the Colour Temperature
Colour temperature is shown in kelvin (K):
| Label | Approx. K | Feel | Common use |
|---|---|---|---|
| Warm white | 2700-3000 K | Yellowish, cosy | Bedrooms, living rooms, pooja room |
| Neutral white | about 4000 K | Balanced | Living and dining areas |
| Cool white / daylight | 5000-6500 K | Bright, bluish | Kitchen, study, office, bathroom |
Some lamps let you switch between colours with the wall switch or a remote. Keep the colour consistent within one room so it doesn't look patchy.
Step 3: Pick the Right Type of Fitting
- Bulbs (B22 pin type or E27 screw type): check which holder your home has before buying. Most older Indian homes use B22.
- Tube lights (batten): the LED batten replaces the old tube and choke in one unit.
- Panel lights (surface or recessed): flat lights for false ceilings and modern rooms. Recessed panels need the ceiling cut-out planned in advance.
- Spotlights and downlights: for highlighting, not for main room lighting.
- Strip lights: for cove lighting, under cabinets and behind TVs. They need a driver (adapter) and proper placement.
- Outdoor and gate lights: choose a weather-resistant rating (an IP rating such as IP65) for places exposed to rain.
Step 4: Check the BIS Registration
Self-ballasted LED lamps sold in India must be registered with the Bureau of Indian Standards (BIS) under its Compulsory Registration Scheme. The lamp or box should carry the Standard Mark with a registration number (R-number). You can check this number on the BIS website. Avoid unbranded lamps without it; cheap unregistered lamps are more likely to flicker, fail early or overheat.
Step 5: Look at Other Specifications
- CRI (colour rendering index): how natural colours look under the light. A higher CRI is nicer for kitchens, dressing areas and shops.
- Driver quality and surge protection: voltage fluctuations can kill cheap LEDs. Ask about the driver and any surge rating.
- Flicker: cheap LEDs can flicker slightly. If you notice it in the shop or on a phone camera, choose another.
- Warranty: many LED lamps come with a replacement warranty. Keep the bill and the box.
Step 6: Plan the Lighting Room by Room
A simple approach:
- Living room: a main ceiling light plus one or two warm lamps.
- Kitchen: bright, cool light over the counter, plus under-cabinet strips if you have a modular kitchen.
- Bedroom: warm light, with a softer reading light near the bed.
- Study: bright, even light without glare on screens.
- Bathroom: a bright light near the mirror, suitable for damp areas.
- Outside: gate and staircase lights on timers or sensors.
Plan lights together with fans so the fan blades don't cast a flickering shadow under the light. Our ceiling fan buying guide explains fan sizes and placement.
Step 7: Installation and Safety
- Switch off the circuit before changing any bulb or fitting.
- New light points, recessed panels, strip light drivers and outdoor lights should be installed by a licensed electrician. Our guide on finding reliable electricians explains what to check.
- Don't place drivers inside closed spaces where they can overheat.
- Use outdoor-rated fittings where rain or water can reach.
Lights During Power Cuts
If you use an inverter, LED lights are an easy load for it because they use little power. Our inverter and UPS guide explains how to size one for lights and fans. Some shops also sell rechargeable emergency LED bulbs.
Disposing of Old Lamps
Old CFLs and tube lights contain small amounts of mercury. Don't break them in the house; wrap them and hand them over through e-waste or collection channels where available rather than mixing them with food waste.
Quick Checklist
- Compared by lumens, not watts.
- Colour temperature chosen per room.
- Holder type (B22/E27) and fitting type checked.
- BIS Standard Mark and R-number on the box.
- Warranty and bill kept.
- New fittings installed by a licensed electrician.
Next Steps
Walk through each room, note the light type and colour you want, and buy BIS-registered lamps with a warranty. You can find lighting and electrical shops in the Kovai Yellow Pages directory.
Frequently Asked Questions (FAQ)
Should I compare LED bulbs by watts or lumens?
By lumens. Lumens tell you how much light a bulb gives; watts tell you how much power it uses. A bulb with more lumens per watt gives more light for the same electricity.
Is BIS registration compulsory for LED bulbs?
Yes. Self-ballasted LED lamps sold in India must be registered with BIS under its Compulsory Registration Scheme and carry the Standard Mark with a registration (R) number. You can check the number on the BIS website.
Warm white or cool white?
Warm white (around 2700-3000 K) gives a yellowish, relaxed light for bedrooms and living rooms. Cool white or daylight (around 5000-6500 K) is brighter and bluish, often used in kitchens, study areas and work spaces.
Can I fit LED lights on my own?
Changing a bulb in an existing holder is simple once the switch is off. New points, panel lights, strip lights with drivers and any wiring work should be done by a licensed electrician.