# Lepro B22 Smart Bulb, 1521lm, 12W

Source: https://www.ranked10.co.uk/tech/best-smart-bulbs/lepro-b22-smart-bulb
Ranked #3 in "Best Smart Bulbs 2026: 10 Ranked, Wattage Claims Checked": https://www.ranked10.co.uk/tech/best-smart-bulbs

- Price: £12.73 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.4 from 4,683 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0F616TGBV?tag=ranked10-21

The Lepro B22 AI Smart Bulb is a colour-changing LED that takes the number 3 spot in our smart bulb guide. It costs £12.73 and holds 4.4 out of 5 from 4,683 ratings. It runs over 2.4GHz WiFi and Bluetooth through the Lepro app, so no separate hub is needed, and the listing puts its maximum light output at 1521 lumens with voice control through Alexa and Google Assistant.

Two things in the listing do not line up with each other. The title reads 12W=100W, but the spec table's "Incandescent Equivalent" field reads 12 Watts — the same number as the wattage, which is itself written as "12 Watt-hours" rather than 12 watts. The title also rounds the output to 1520lm where the table says 1521 lumens, and the bulb is described as tunable from warm to cool daylight while the Color Temperature field gives one figure, 2700 Kelvin. Everything on this page is taken from the Amazon listing and its customer reviews. We have not tested the bulb ourselves.

## Specification

| Field | Value |
|---|---|
| Price | £12.73 |
| Rating | 4.4 out of 5, from 4,683 ratings |
| Light Output Maximum | 1521 Lumens |
| Title Claim | 12W=100W |
| Incandescent Equivalent (as listed) | 12 Watts |
| Wattage (as listed) | 12 Watt-hours |
| Colour Temperature (as listed) | 2700 Kelvin |
| Bulb Base | B22 |

## Questions people ask

**How bright is the Lepro B22 AI Smart Bulb?**

The listing gives a maximum light output of 1521 lumens, and the title rounds this to 1520lm. Lepro describes it as super bright from 12W of power.

**Does the Lepro B22 bulb need a hub?**

No. The listing says it is controlled through the Lepro app over 2.4GHz WiFi and Bluetooth, without needing additional hubs.

**Is it really a 100W replacement?**

The title says 12W=100W, but the specification table's "Incandescent Equivalent" field reads 12 Watts, the same figure as the wattage. The wattage field itself is given as 12 Watt-hours.

**Can it change colour and white tone?**

The listing says 16 million colours plus adjustable white light from warm to cool daylight, though the Color Temperature field gives a single value of 2700 Kelvin.

**What fitting does it use?**

The bulb is listed with a standard B22 bayonet cap base, for compatible fixtures.

**Does it work with Alexa?**

Yes. The listing states compatibility with Alexa and Google Assistant for switching, dimming and colour changes by voice.