GU10 LED Bulb | 5.5W, 420 Lumens at 3000K, Dimmable
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Frequently Bought Together
Total: $121.00
| Wattage | 5.5W |
|---|---|
| Equivalent | 50W halogen |
| Base | GU10 twist and lock |
| Output | 420 lumens |
| Colour temperature | 3000K |
| Glass | Frosted |
| Dimming | Dimmable |
- Check the fitting is GU10 - two pins that twist a quarter turn, not a screw base.
- Match it to the halogen you are replacing - 4W to 5W for a 35W halogen, 5W to 6W for a 50W, 8W to 10W for a 75W.
- Check the dimmer when swapping a whole run - a dimmer sized for 500W of halogen has a minimum load that 55W of LED may fall below. The lamps will flicker or refuse to start at low settings.
- Budget for a new dimmer - swapping a full run to LED often means changing it, and that is worth knowing before you start.
- Pick frosted or clear by the fixture - frosted for a ceiling fitting you look up into, clear for a track head aimed at artwork.
- Twist gently into the socket - forcing a GU10 can damage the spring contacts.
Twist and lock, not screw in
A GU10 has two pins that twist a quarter turn into the socket. It is the standard fitting for track heads and for the adjustable downlights that take a replaceable lamp, and it exists because a screw base is awkward to change on a fixture pointing sideways.
At 5.5W and 420 lumens this replaces a 50W halogen, which is what most of these fittings originally held.
Specification
| Wattage | 5.5W |
| Equivalent | 50W halogen |
| Base | GU10 twist and lock |
| Output | 420 lumens |
| Colour temperature | 3000K |
| Glass | Frosted |
| Dimming | Dimmable |
Replacing halogen
| Old halogen | LED to fit | Power saved |
|---|---|---|
| 35W | 4W – 5W | About 85 percent |
| 50W | 5W – 6W | About 89 percent |
| 75W | 8W – 10W | About 87 percent |
Ten fittings switched from 50W halogen to 5.5W LED cuts the draw from 500W to 55W. In a kitchen lit for five hours a day, that is a difference worth having.
Check the dimmer
A dimmer sized for 500W of halogen usually has a minimum load, and 55W of LED may fall below it. The lamps will flicker or refuse to start at low settings. Swapping a whole run to LED often means changing the dimmer as well, and that is worth budgeting for before you start.
Frosted or clear
Frosted glass softens the edge of the beam and hides the emitter, which matters in a fixture you look up into. Clear gives a tighter beam and a visible source. For a track head aimed at artwork, clear. For a ceiling fitting in a living room, frosted.
Related
For the fixtures these go into see our track lighting. For screw-base fixtures, see pendant bulbs.
