# Tapo L535B B22 Smart Bulb, Matter, 1055lm

Source: https://www.ranked10.co.uk/tech/best-smart-bulbs/tapo-l535b-b22-smart-bulb
Ranked #1 in "Best Smart Bulbs 2026: 10 Ranked, Wattage Claims Checked": https://www.ranked10.co.uk/tech/best-smart-bulbs

- Price: £13.99 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.4 from 9,531 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0CNWC6FXC?tag=ranked10-21

The Tapo L535B is a B22 bayonet-cap LED smart bulb costing £13.99, rated 4.4 out of 5 from 9,531 ratings, and it takes the number one spot in this guide. On a page where two other listings have their wattage fields round the wrong way, the Tapo's headline numbers mostly hold together: the bullet text claims 1,055 lumens and a 75W equivalent, and the spec table underneath backs both up, listing 8.6 watts drawn against an incandescent equivalent of 75 watts. That is a bulb drawing a fraction of what its equivalent rating suggests, which is what an LED is supposed to do.

Two fields still do not fit. The listing carries an EU energy label of E, yet 1,055 lumens from 8.6 watts works out at roughly 123 lumens per watt, which is not what an E normally looks like. And the power source is given as DC, while the same table lists 220 volts and an accepted 220 to 240 volts at 50 hertz — that is mains AC, not direct current. The lumens figure is the number worth shopping on here, and it is also the one owners mention. Everything on this page comes from the Amazon listing — the specs, the rating, the sample of reviews — not from any testing we carried out.

## Specification

| Field | Value |
|---|---|
| Price | £13.99 |
| Rating | 4.4 out of 5 from 9,531 ratings |
| Light output | 1,055 lumens |
| Wattage | 8.6 watts |
| Incandescent equivalent | 75 watts |
| Power source | DC (as listed) |
| EU energy label | E (as listed) |
| Rated life | 25,000 hours |

## Questions people ask

**How bright is the Tapo L535B?**

The listing gives it 1,055 lumens and calls that a 75W equivalent, which matches the 75-watt figure in its own spec table.

**How much power does the Tapo L535B draw?**

The spec table lists 8.6 watts, repeated across the Wattage, Power Consumption and Light Source Wattage fields.

**Does the Tapo L535B work with Alexa?**

Yes. The listing says the Tapo L535B is Matter-certified and works with Alexa, Siri and Google Assistant, and that it is controlled by app, remote or voice.

**What fitting does the Tapo L535B use?**

The spec table gives the bulb base as B22, while the bulb shape size is listed as A19.

**What energy rating does the Tapo L535B carry?**

The EU Energy Efficiency Label field on the listing says E, on the same page that quotes 1,055 lumens from 8.6 watts.

**How long is the Tapo L535B rated to last?**

The listing states an average life span of 25,000 hours.