Spotlight (GU10) LED bulbs: from £1.25.

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Source: Retailers' own product feeds, through Awin · Bulbs checked 6 Nov 2026, 05:35

Example: swapping one 35 W bulb for the cheapest of these, on 3 hours a day at the Great Britain average price cap rate, saves about £8.65 a year. The savings calculator takes your own bulbs, hours and rate.

1. 01

   High quality 5 Watt GU10 COB LED Dimmable Warm White

   5 W LED, 345 lumens: about as bright as a 35 W bulb

   Checked 6 Nov 2026, 05:35

   Cheapest We earn commission

   One bulb

   £3.50

   Go to Lights 4 Living →
2. 02

   Crompton GU10 Spotlight LED Light Bulb 4.9W (50W Eqv) Long Barrel 74mm Cool White Frosted Halogen Replacement Long-Necked 100°

   4.9 W LED, 355 lumens: about as bright as a 35 W bulb

   Checked 6 Nov 2026, 05:35

   We earn commission

   One bulb

   £5.07

   Go to Simply LED →
3. 03

   Crompton GU10 Spotlight LED Light Bulb 4.9W (50W Eqv) Long Barrel 74mm Warm White Frosted Halogen Replacement Long-Necked 100°

   4.9 W LED, 330 lumens: about as bright as a 35 W bulb

   Checked 6 Nov 2026, 05:35

   We earn commission

   One bulb

   £5.07

   Go to Simply LED →

Example: swapping one 50 W bulb for the cheapest of these, on 3 hours a day at the Great Britain average price cap rate, saves about £12.78 a year. The savings calculator takes your own bulbs, hours and rate.

1. 01

   High Quality 5.5 watt LED GU10 Cool White, Glass Body

   5.5 W LED, 370 lumens: about as bright as a 50 W bulb

   Checked 6 Nov 2026, 05:35

   Cheapest We earn commission

   One bulb

   £1.25

   Go to Lights 4 Living →
2. 02

   Saxby Lighting 78856 Bright 6 Watt GU10 SMD LED Warm White

   6 W LED, 470 lumens: about as bright as a 50 W bulb

   Checked 6 Nov 2026, 05:35

   We earn commission

   One bulb

   £1.28

   Go to Lights 4 Living →
3. 03

   Crompton GU10 Spotlight LED Light Bulb 3.5W 4000K Cool White 50W Eqv Halogen Replacement

   3.5 W LED, 500 lumens: about as bright as a 50 W bulb, as the retailer says too

   Checked 6 Nov 2026, 05:35

   We earn commission

   One bulb

   £1.67

   Go to Simply LED →
4. 04

   Crompton GU10 Spotlight LED Light Bulb 3.5W 2700K Warm White 50W Eqv Halogen Replacement

   3.5 W LED, 400 lumens: about as bright as a 50 W bulb, as the retailer says too

   Checked 6 Nov 2026, 05:35

   We earn commission

   One bulb

   £1.67

   Go to Simply LED →
5. 05

   Crompton GU10 Spotlight LED Light Bulb 3.5W 6500K Daylight 50W Eqv Halogen Replacement

   3.5 W LED, 400 lumens: about as bright as a 50 W bulb, as the retailer says too

   Checked 6 Nov 2026, 05:35

   We earn commission

   One bulb

   £1.67

   Go to Simply LED →

• Prices come from the retailer's own product feed, supplied through Awin, for one bulb. Delivery isn't included, and the retailer's page has the final price and VAT: check both before you order. Multi-packs and coloured bulbs aren't listed.
• We work out which old bulb an LED matches from its brightness in lumens, which bulbs must state on their packaging, rather than from a retailer's "equivalent to" wording. There is no official table, so the groups use the figures bulb makers and advice sites use, and a wide check that the lumens are possible for the watts.
• Check the fitting on your old bulb or light: Spotlight (GU10) is the shape of the base. A bulb that is dimmable only works with a dimmer switch, and the product page says whether it is.

• Small bayonet (B15)
• Bayonet (B22)
• Small screw (E14)
• Large screw (E27)