Question 1

What is the difference between a single-colour LED bulb and an RGB colour-changing bulb?

Accepted Answer

A single-colour LED bulb glows in one fixed shade, such as red, green, blue, or yellow, and works with a normal switch. An RGB bulb mixes red, green, and blue LEDs to produce many colours, usually controlled by a remote or a phone app. Single-colour bulbs are cheaper and common for festive or temple lighting, while RGB bulbs suit rooms where you want to change the mood.

Question 2

Do smart colour bulbs work with Alexa and Google Home without a hub?

Accepted Answer

Most Wi-Fi smart colour bulbs sold in India connect directly to your home router and work with Alexa and Google Assistant without a separate hub. Bluetooth-only bulbs usually need a phone nearby or a compatible hub for voice control. Check the product listing for Wi-Fi support and a 2.4 GHz network requirement before buying, since many bulbs do not connect to 5 GHz Wi-Fi.

Question 3

Which base type should I buy for colour bulbs in India, B22 or E27?

Accepted Answer

B22 is the push-and-twist pin base used in most Indian homes, so it fits the majority of standard holders. E27 is a screw base found in some decorative lamps and imported fittings. Check your existing holder before ordering. LedDisplay lists the base type for each colour bulb so you can filter by the one you need.

Question 4

Why do colour bulbs look dimmer than white LED bulbs of the same wattage?

Accepted Answer

Coloured light, especially deep red or blue, looks less bright to the human eye than white light, and colour filters or individual LED channels produce fewer lumens. A 9W RGB bulb set to blue will light a room much less than a 9W white bulb. Most smart colour bulbs also have a white mode for everyday lighting, so check the lumen rating in white mode when comparing models on LedDisplay.

Colour Bulbs

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