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Philips Hue GU10 Spotlight Guide & Dimensions

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If you have some downlights in your home already then changing these to Hue downlight bulbs is a great way to change the room they are in. You may have these in a hallway, changing them to these bulbs make great night lights allowing you to have them on in a dim light when getting up in the morning or going to the bathroom in the night.

A common place is the kitchen, here you can add mood lighting by changing the color, brightness and scene. Great for romantic evenings in or setting a party scene in the hub of the house.

Philips Hue GU10

There are two type of this bulb, white ambience, and, color and white. The white ambience come as a perfect fit bulb, meaning they are the same size as a standard GU10 bulb, making them a straight swap and likely to fit your downlight fitting.

The other bulb is the color and white ambience GU10, this is bigger and therefore may not fit. The color bulbs are more expensive with the white bulbs coming in twin packs too.

Philips Hue Downlight Fittings

With Hue GU10 bulbs being longer they may not fit in your standard fitting, below are some downlight fittings that ay be suitable.

US fitting:

UK Fittings:

Hue GU10 too big?

A common issue is the size of the color GU10 bulbs, of which you may not have realised but they are intact bigger than your standard GU10 bulb. These bulbs are slightly longer meaning that they won’t fit in a standard downlight housing.

These are the sizes of the color GU10 bulbs for Hue.

  • Length: 72mm
  • Width: 50mm
philips hue gu10 color and white dimensions

Philips Hue White Ambiance GU10 Specification

  • 5.5 W max operation power
  • 0.5 W max standby power
  • GU10 form factor
  • 25,000 Hrs lifetime
  • <2 sec start up from wall switch
  • <0.5 sec start up from standby
  • Software upgradable
  • Lamp size: 50*57mm
  • Lumen output:
    • 300 lm @ 4000K
    • 230 lm @ 3000K
    • 130 lm @ 2200K
    • 200 lm @ 6500K
  • 46 lm/W luminous efficacy @ 4000K
  • >80 CRI from 2000–4000K
  • >50 thousands shade of white, from warm to cold colour temperatures
  • Dimming only via Hue compatible devices down to 1%
  • Beam angle –46° ± 3° (Wide)

Read our full guide to Philips Hue bulbs here.

Article written by Mike

Founder of Hue Home Lighting, huge Hue fan with Hue bulbs all over my home from kitchen to bedroom and garden.


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  1. Andrew

    Has anyone noticed that the color’s are not accurate with these bulbs? When I select a deeper green, I get a very light green/yellow, and with a deep blue, more of a purple. Is this a common thing with these bulbs vs. the other Hue lights?

  2. andrew

    Hi I have just had gu10 fitting installed in my bathroom so I can use hue bulbs except when I put my bulbs in, the ones that I took from my kitchen so I know they work, nothing worked, they blinked every minuet or so but nothing else and the app said they could not be found, I tried a normal gu10 led bulb and it worked fine, any ideas.

  3. Rodger JOHN

    These GU10 colour lamps do not fit my lamp holder. I thought this was an accepted international standard. The White lamps are fine. The units are 4 inline so to have two that fit and two that don’t is just plan daft.

    Is there an adapter available?


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