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GU10 led bulb on a leading-edge dimmer flickers

Many LED bulbs are made for trailing-edge dimmers and misbehave on a leading-edge one. Check which dimmer type the bulb maker lists and fit that. There's no standard minimum load: use the minimum and maximum printed on your dimmer — with 5 W GU10 bulbs a 10 W minimum needs 2, a 40 W minimum 8. The bulb must be marked dimmable.

Many LED bulbs are made for trailing-edge dimmers and misbehave on a leading-edge one. Check which dimmer type the bulb maker lists and fit that.

Lights for this

8 lights
Kaldor Wall Sconce
Kaldor Wall Sconce
Kaldor Wall Sconce

Kaldor Wall Sconce

£109
GU10 · dimmable as stated by the supplier
Arrives 14–24 Oct
Beaufort Wall Sconce
Beaufort Wall Sconce
Beaufort Wall Sconce

Beaufort Wall Sconce

£141
GU10 · dimmable as stated by the supplier
Arrives 14–24 Oct

The numbers for this situation

  • Typical bulb5 Wled GU10
  • Bulbs for a 10 W printed minimum2the minimum printed on your dimmer decides
  • Bulbs for a 40 W printed minimum8
  • Our GU10 lights stated dimmable8
  • Share of our GU10 lights stated dimmable6 %

Worked out, not measured

Where these numbers come from

  • Bulbs needed = the minimum printed on the dimmer ÷ the bulb's watts, rounded up; typical bulb wattages are assumptions. Checked against 9 matching lights in our catalogue snapshot of 2026-09-27; 8 can be bought now. Same sums on every page, release families-2026-09-29.

All the numbers

Minimum printed on the dimmer (W)Bulbs neededLoad (W)
015
10210
20420
40840

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