# Best Smart Bulbs 2026: 10 Ranked, Wattage Claims Checked

Source: https://www.ranked10.co.uk/tech/best-smart-bulbs
Published: 2026-09-19 | Updated: 2026-09-19 | Prices checked on Amazon UK on 2026-09-19

The best smart bulbs in this round-up are the ones whose spec tables you can actually trust — and not one of them is perfect. Tapo's B22 two-pack with 806 lumens per bulb lists 'Wattage: 60 watts' and 'Incandescent Equivalent: 8.3 Watts' in the same table, which is the wrong way round for a bulb that actually draws 8.3W. Lepro's 1521-lumen bulb is titled '12W=100W', yet its own table says 'Incandescent Equivalent: 12 Watts' and gives the wattage in 'Watt-hours'. Meanwhile, Avatar Controls claims 900 lumens of maximum output and 600 lumens of white brightness for the same twin pack. In short, shop on lumens and check the headline wattage twice.

We ranked ten of the best smart bulbs on Amazon on light output in lumens, per-bulb price, base fitting, claimed lifespan, and how well each listing agrees with itself.

## The ranking

### 1. Tapo L535B B22 Smart Bulb, Matter, 1055lm

- Price: £13.99 | Amazon rating: 4.4 from 9,531 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/tapo-l535b-b22-smart-bulb
- Buy on Amazon: https://www.amazon.co.uk/dp/B0CNWC6FXC?tag=ranked10-21

The brightest single bulb here at 1055 lumens on a claimed 8.6W draw, and the only one with Matter certification — which is why it leads these smart bulbs.

It tops the list on output: 1055 lumens, the highest figure for any single bulb here, from a table that lists 8.6W of power consumption and a 75W incandescent equivalent. Crucially, those two numbers line up. 1055 lumens is about what you expect from a 75W-equivalent LED, and the wattage field is not doing the work of the lumen field. That is more than you can say for the 806-lumen Tapo pair a place below, whose table swaps the two.

In practice, this is one of the few smart bulbs here that pairs across Alexa, Siri and Google Assistant rather than locking you into a single app, because it carries Matter certification. The table quotes a 25,000-hour average lifespan, dimmable operation, tunable colour temperature and a 220-240V mains supply. Control runs through the Tapo app, a remote or voice.

The catch is in the same table: 'Power Source: DC' is listed for a bulb that screws into a 220-240V bayonet fitting. In theory that is a data-entry slip, but check the fitting before you buy. And at £13.99 for one bulb this is the highest unit price in the round-up — the £14.99 two-pack directly below gives you two bulbs for a pound more, at the cost of 249 lumens each.

Pros: 1055 lumens from a claimed 8.6W — the highest single-bulb output here; Matter certified, so it works across Alexa, Siri and Google Assistant; 25,000-hour claimed lifespan, the joint-longest on this list; 9,531 ratings at 4.4, with 72% of them five-star; Wattage and incandescent-equivalent fields agree, unlike most of the group
Cons: £13.99 for a single bulb — the highest unit price in this round-up; EU energy label E, the same grade as bulbs costing half as much; CRI 80, where the Lepro two-pack quotes 90; The table lists 'Power Source: DC' for a mains-voltage fitting

### 2. Tapo L530B B22 Smart Bulb 2-Pack, 806lm

- Price: £14.99 | Amazon rating: 4.4 from 16,434 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/tapo-l530b-b22-two-pack
- Buy on Amazon: https://www.amazon.co.uk/dp/B08Z4HXHR7?tag=ranked10-21

The most-reviewed smart bulbs here at 16,434 ratings — and the clearest example on this page of a spec table arguing with itself.

Three fields in this table disagree. 'Wattage' says 60 watts, 'Power Consumption' says 60 Watts, and 'Incandescent Equivalent' says 8.3 Watts. The bulb does not draw 60W; the 806-lumen figure sitting next to it gives the game away, since no 806-lumen LED needs that much. The two fields have been swapped, which means this is an 8.3W bulb being sold under a 60W headline.

What you actually get is a two-pack of B22 bayonet bulbs, dimmable from 1 to 100 percent, with 16 million hues, schedules and sunrise/sunset modes, plus Wi-Fi control through Alexa and Google Assistant. At £14.99 for the pair that is £7.50 a bulb. Device sharing is included, so two people can run one bulb from separate phones.

However, if you want the brightest light in a room, 806 lumens is 249 short of the bulb at number one, and there is no average lifespan stated anywhere in the table. The EU energy label field reads 'High' rather than a letter grade, which tells you nothing you can compare, and the CRI is 80. Buy this for multi-bulb coverage rather than for one bright fitting.

Pros: 16,434 ratings at 4.4 — the largest sample in this round-up; £7.50 per bulb, matching the E27 pair lower down; Dimmable 1-100% with 16 million colours and sunrise/sunset scheduling; Works with Alexa and Google Assistant over Wi-Fi, no hub; 806 lumens per bulb is enough for a bedside or a hallway
Cons: The table lists 'Wattage: 60 watts' and 'Incandescent Equivalent: 8.3 Watts' — the wrong way round; No average lifespan given, unlike most bulbs here; Energy label field says 'High' instead of an A-G grade; 806 lumens is dimmer than four other bulbs on this list

### 3. Lepro B22 Smart Bulb, 1521lm, 12W

- Price: £12.73 | Amazon rating: 4.4 from 4,683 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/lepro-b22-smart-bulb
- Buy on Amazon: https://www.amazon.co.uk/dp/B0F616TGBV?tag=ranked10-21

The brightest bulb on the list at 1521 lumens for £12.73, though the '100W' in its title appears nowhere in its own table.

This is the highest output here: 1521 lumens, repeated in three separate fields, so it is probably the real number. The title says '12W=100W'. The table, meanwhile, says 'Incandescent Equivalent: 12 Watts' — the same figure as the wattage — and lists the wattage itself as '12 Watt-hours', which is a unit of energy rather than of power. There is no 100 watts anywhere in the data. At 12W for 1521 lumens this is an efficient bulb; the marketing label is the part that does not add up.

It is a B22 bayonet fitting with dimmable 2.4GHz Wi-Fi and Bluetooth control, and no hub is required. Colour temperature is tunable white plus 16 million RGB colours, with music sync, schedules and app control. Voice works through Alexa and Google Assistant. One field quotes 2700 Kelvin as the colour temperature, which sits oddly against a tunable-white claim.

The catch is that £12.73 buys one bulb. The Lepro two-pack further down costs £16.99 and works out at £8.50 a bulb, so anyone fitting a room should look there first. As a colour changing smart bulb for a single lamp, though, nothing here beats it on raw lumens.

Pros: 1521 lumens — the highest output in this round-up; 12W draw for that output, the best lumens-per-watt here; B22 bayonet with Wi-Fi and Bluetooth, no hub needed; RGB plus tunable white, with music sync and schedules; 4,683 ratings at 4.4
Cons: The '100W' in the title is contradicted by the table's own 'Incandescent Equivalent: 12 Watts'; Wattage is given in 'Watt-hours', the wrong unit; Only one bulb in the box; EU energy label E

### 4. Avatar Controls B22 Smart Bulb 2-Pack, 900lm

- Price: £12.75 | Amazon rating: 4.3 from 11,483 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/avatar-controls-b22-smart-bulb
- Buy on Amazon: https://www.amazon.co.uk/dp/B07PKMC87F?tag=ranked10-21

The cheapest per bulb in this group at £6.38, with a claimed 50,000-hour life — but its own page lists two different brightness numbers.

Worth noting first: the table gives 'Light Output Maximum: 900 Lumens' in one field and 'White Brightness: 600 Lumens' in another. A 300-lumen gap is not a rounding error, and it matters most when you want white light rather than colour. The same table calls a 9W bulb an 80W incandescent equivalent, a ratio no other bulb here claims, and lists the base as 'B22D' where the title says B22.

At £12.75 for two, that is £6.38 a bulb, the lowest unit price on the list. You get tunable white from 2700K to 6500K, 16 million colours, more than 80 preset scenes, music sync, timers and group control on 2.4GHz Wi-Fi. The claimed lifespan is 50,000 hours, double the Tapo bulbs. The beam angle is stated as 270 degrees.

Even so, 4.3 stars from 11,483 ratings is the joint-lowest score in the top five, and the EU energy label reads F. With 600 lumens of white brightness, this is not the pick for a room where you read or work. It is good value as a smart bulb 2 pack for mood lighting, hallways and lamps.

Pros: £6.38 per bulb — the cheapest unit price in this round-up; Claimed 50,000-hour lifespan, the longest here; Tunable white 2700K-6500K plus 16 million colours; Over 80 scene presets, music sync and group control; 11,483 ratings at 4.3
Cons: 900 lumens maximum but 600 lumens of white brightness on the same page; 4.3 stars is the joint-lowest score in the top five; Energy label F; Base listed as B22D while the title says B22

### 5. Tapo L530E E27 Smart Bulb 2-Pack, 800lm

- Price: £14.99 | Amazon rating: 4.5 from 2,485 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/tapo-l530e-e27-two-pack
- Buy on Amazon: https://www.amazon.co.uk/dp/B08Z4KCJZY?tag=ranked10-21

The highest-rated item here at 4.5 from 2,485 ratings, and the screw-fit option for anyone without bayonet holders.

This is the E27 screw version of the Tapo pair, and its table is the cleanest in the group — largely because it omits the incandescent-equivalent field altogether rather than filling it in wrongly. It quotes 8.7W, 800 lumens and a 240V supply, and all three are consistent with each other. For an E27 smart bulb, that is about as much as you can ask from a listing.

You get two bulbs, 16 million hues, dimming from 1 to 100 percent, schedules with sunrise and sunset modes, device sharing and voice control through Alexa and Google Assistant. At £14.99 the pair works out at £7.50 each, identical to the bayonet pair above. Control is by app, remote or voice over Wi-Fi.

That said, the energy label is written as a lower-case 'f' where the bayonet pair says 'High', so the two Tapo listings do not even grade themselves the same way. And 800 lumens is mid-table: three bulbs here output more. Skip it if your fittings are bayonet, since E27 and B22 do not interchange.

Pros: 4.5 stars from 2,485 ratings — the highest score here; £7.50 per bulb in a two-pack; 8.7W and 800 lumens, consistent across every field; Dimming 1-100% with sunrise and sunset scheduling; Wi-Fi control via app, remote, or Alexa and Google voice
Cons: E27 screw fitting only — no good in bayonet holders; 800 lumens puts it mid-table on output; Energy label written as a lower-case 'f' while the bayonet pair says 'High'; No incandescent-equivalent figure, so it cannot be compared like-for-like on the page

### 6. Lepro B22 Smart Bulb 2-Pack, 1100lm, CRI 90

- Price: £16.99 | Amazon rating: 4.3 from 2,583 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/lepro-ai-smart-bulb-b22
- Buy on Amazon: https://www.amazon.co.uk/dp/B0DB1MTWRZ?tag=ranked10-21

The only bulb here with a colour rendering index of 90, and £8.50 per bulb in a bayonet two-pack.

Colour rendering is where this one stands out. The CRI is listed as 90, against 80 on every other bulb in this round-up. That is the highest CRI of any of these smart bulbs, and it means warmer skin tones and less flat-looking fabric under the light. The output is 1100 lumens per bulb from a 10W draw, with a 75W incandescent equivalent.

As a WiFi smart bulb it connects over 2.4GHz with Bluetooth for setup, and needs no hub. Both bulbs are dimmable, tunable from warm to cool white, and support 16 million colours, timers, schedules, group control and music sync. The beam angle is quoted at 220 degrees, so the light spreads rather than spots.

The trade-off is lifespan: 15,000 hours against 25,000 on the Tapo bulbs and 50,000 claimed for the Avatar Controls pair. At £16.99 this is also the priciest two-pack here, though £8.50 a bulb is still £1 less than a single Lepro. If you want accurate colour rather than the most lumens, this B22 smart bulb is the one.

Pros: CRI 90 — the highest colour rendering figure here; 1100 lumens per bulb from 10W; £8.50 per bulb in a two-pack; 220-degree beam angle, wider than the Govee's 24 degrees; Wi-Fi and Bluetooth with no hub required
Cons: 15,000-hour claimed lifespan, half the Tapo figure; £16.99 is the dearest two-pack on this list; 4.3 stars, joint-lowest in the top five; No EU energy label field given at all

### 7. Govee GU10 Smart Bulb 4-Pack, 400lm RGBWW

- Price: £39.99 | Amazon rating: 4.6 from 2,363 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/govee-gu10-smart-bulb-4-pack
- Buy on Amazon: https://www.amazon.co.uk/dp/B0CYL13KFX?tag=ranked10-21

The highest rating on the list at 4.6, and also the dimmest per bulb at 400 lumens — these are spotlights, not room lighting.

Output is the number to lead with. Most smart light bulbs in this round-up are designed to light a room; this set is not. Each GU10 bulb gives 400 lumens from a 4.8W draw, the lowest per-bulb figure here, and the beam angle is 24 degrees — a narrow spot rather than a wash. The table lists a 40W incandescent equivalent. At £39.99 for four, that is £10 a bulb.

Where it wins is control and consistency. The Govee Home app handles 56 animated scene presets, brightness from 0 to 400 lumens, colour temperature from 2700K to 6500K, music sync through your phone's microphone, timers and group control alongside other Govee products. It works with Alexa and Google Home over 2.4GHz Wi-Fi. Being GU10, it drops into a downlight fitting with no adapter.

That said, one bullet in the listing is cut off mid-sentence — 'This alexa light bulb cannot be used w' — so check what the restriction is before ordering. The energy label is F, the CRI is 80, and 400 lumens per bulb will not carry a living room on its own. It is the right buy only if you already have GU10 holders.

Pros: 4.6 stars from 2,363 ratings — the highest score here; 56 animated scene presets, the most of any bulb in this round-up; Brightness and colour temperature both adjustable (0-400lm, 2700-6500K); GU10 fitting, so no adapter needed for downlights; Group control alongside other Govee lights
Cons: 400 lumens per bulb — the lowest output here; £39.99 for four works out at £10 a bulb, against £6.38-£8.50 for the other multi-packs; 24-degree beam angle makes it a spotlight, not general lighting; One listing bullet is truncated mid-sentence; check the restriction before buying

### 8. Amazon Basics B22 Smart Bulb, 806lm, Alexa Only

- Price: £8.05 | Amazon rating: 4.4 from 1,021 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/amazon-basics-smart-bulb-b22
- Buy on Amazon: https://www.amazon.co.uk/dp/B0D34XJZ4L?tag=ranked10-21

The cheapest bulb here at £8.05, and the only one that works with Alexa alone.

Three fields, two numbers. The table lists 'Wattage: 8 watts', then 'Power Consumption: 9 Watts' and 'Light Source Wattage: 9 Watts'. Either the wattage or the consumption is wrong. It also calls 806 lumens a 60W incandescent equivalent, where the 806-lumen Tapo pair claims 8.3W and the Lepro 806-lumen pair at the bottom claims 60W — three bulbs, three different ways of describing roughly the same light.

At £8.05 for one bulb it is the cheapest item in this round-up. Control is through the Alexa app or voice only: no Google Assistant, no Siri, no third-party app. You get 16 preset colour selections rather than a full colour wheel, brightness from 5 to 100 percent, group control by room, and routines that run at sunset. The claimed lifespan is 15,000 hours.

However, the rating histogram is the weakest here: 8 percent of its 1,021 ratings are one-star, the highest share of any bulb on this list. That is a small sample next to the Tapo pair's 16,434, and it is a reason to read recent reviews rather than the average. If you are outside the Alexa ecosystem, skip it — as an Alexa smart bulb it is locked to one platform.

Pros: £8.05 — the lowest price in this round-up; 806 lumens from a claimed 8-9W; Group control and sunset routines through the Alexa app; 1,021 ratings at 4.4; Cheapest way to test whether voice control suits you
Cons: Works with Alexa only — no Google Assistant or Siri; 16 preset colours rather than 16 million; 8% one-star reviews, the highest share here; Table gives both 8W and 9W for the same bulb

### 9. Enshine B22 Smart Bulb, 1500lm, 15W

- Price: £11.89 | Amazon rating: 4.2 from 811 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/enshine-b22-smart-bulb
- Buy on Amazon: https://www.amazon.co.uk/dp/B08T24CTMF?tag=ranked10-21

Second-brightest here at 1500 lumens, and the lowest-rated item on the list at 4.2 from 811 ratings.

The title says '15W=100W'. The table says 'Incandescent Equivalent: 120 Watts'. Those two cannot both be right, and the gap is wide enough to change what you expect. The same table lists the bulb shape as 'BAY15D', which is a car-bulb classification rather than a household A19. What is consistent: 15W of draw, 1500 lumens, a B22 base and a 25,000-hour claimed life.

In practice that works out at 100 lumens per watt, against roughly 127 for the Lepro at number three, so it is the less efficient of the two bright bulbs. RGB plus tunable white from 2700K to 6500K, music sync, rhythm and schedule functions and app control over 2.4GHz Wi-Fi are included. Worth noting: the listing states it does not work with a dimmer switch.

The catch is reliability. At 4.2 stars from 811 ratings this is the lowest-rated bulb here, and 12 percent of those ratings are two stars or below — the highest share in the group. The sample is small, but combined with the muddled specs it is enough to make this the weakest of the ten smart bulbs here.

Pros: 1500 lumens — the second-highest output here; 15W draw with a 25,000-hour claimed lifespan; RGB plus 2700K-6500K tunable white; Rhythm mode simulates sunrise and sunset; B22 bayonet fitting with Wi-Fi and no hub
Cons: '15W=100W' in the title against 'Incandescent Equivalent: 120 Watts' in the table; 4.2 stars from 811 ratings — the lowest score here; 12% of ratings are two stars or below; Does not work with a dimmer switch

### 10. Lepro AI E27 Smart Bulb 2-Pack, 806lm

- Price: £12.99 | Amazon rating: 4.4 from 848 ratings
- Full review: https://www.ranked10.co.uk/tech/best-smart-bulbs/lepro-ai-e27-smart-bulb
- Buy on Amazon: https://www.amazon.co.uk/dp/B0CXPL8HDJ?tag=ranked10-21

The cheapest per bulb of the screw-fit options at £6.50, with an AI scene feature none of the others have.

The table gives 'Light Output Maximum: 806 Lumens' and 'White Brightness: 800 Lumens' — a six-lumen gap, which is nothing next to the contradictions elsewhere on this page. The draw is 8.5W, and the incandescent equivalent is listed as 60W, the same as the Amazon Basics bulb at the same output. For a dimmable smart bulb at this price, the numbers hold together.

The difference is the software. Lepro's AI feature takes a written or spoken description of the mood you want — the listing gives yoga and movie night as examples — and builds a lighting scene from it, rather than making you pick colours manually. Music sync, dimming from 1 to 100 percent and voice control through Alexa and Google Assistant are also included.

However, 848 ratings is the smallest sample in this round-up, so the 4.4 average carries less weight than the 16,434 behind the Tapo pair. The claimed lifespan is 15,000 hours, the shortest here, and the fitting is E27 screw only. As a smart bulb 2 pack for screw fittings it is the best value on the page; as a first smart bulb for a bayonet house, it is the wrong shape.

Pros: £6.50 per bulb — the cheapest screw-fit pair here; AI scene generation from a written or spoken description; 806 lumens from 8.5W, close to the claimed 60W equivalent; Dimming 1-100%, music sync, schedules and voice control; 4.4 stars
Cons: 848 ratings, the smallest sample here; 15,000-hour claimed lifespan, the shortest on this list; E27 screw fitting only; Energy label F

## Verdict

For most homes, the Tapo L535B at £13.99 is the pick: 1055 lumens from a claimed 8.6W is the highest output of any single bulb here, and it is the only Matter-certified one. If you need a pair, the Lepro B22 two-pack at £16.99 works out at £8.50 a bulb and quotes a colour rendering index of 90, the best figure in the group; the Avatar Controls pair is cheaper again at £12.75, though its two brightness figures do not match. For GU10 downlights, the Govee four-pack is the only fitting of its kind here, and 400 lumens per bulb will not light a room alone. Either way, compare smart bulbs on lumens per pound rather than the wattage in the title — that is the one number these smart bulbs cannot agree on.