Rank #1 in Best Smart Bulbs 2026: 10 Ranked, Wattage Claims Checked
Tapo L535B B22 Smart Bulb, Matter, 1055lm
Price and rating as shown on Amazon when we collected them. Both change.
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.
How those 9,531 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| 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 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Really great bulb EXTREMELY bright so much so I was shocked I use this bulb in my living room that is also part of the kitchen and it's strong enough to reach the opposite side of my room. Most days I keep it dimmed to 68% and that is more than enough light.”
Verified purchase“Energy efficient bulbs.easy to install quick and simple. Good value for money. Can have different colours. Some colours make room feel warm. Have had no problems with lifespan had a couple 2 years now in other rooms. Wifi setup and my alexa. Can set timer also switch on before i get home from phone”
What it is up against
The rivals it was ranked against in Best Smart Bulbs 2026: 10 Ranked, Wattage Claims Checked.
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.
Comments
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