GU10 LED Bulb 3.6W 345lm Dimmable - Daylight 6500K

This is a GU10 LED spot rated at 3.6W, giving 345 lumens at 6,500K. The GU10 cap is the twist and lock two pin fitting used in most UK mains voltage downlights and track heads, so it goes into an existing socket with no transformer or driver involved. At 6,500K the light sits at the daylight end of the white scale, cooler and cleaner than the yellow of an old halogen. The pack quotes a 50W halogen replacement and gives the 345 lumens as falling in a narrow cone.

Daylight white is the one to pick where you want to see detail rather than feel cosy. It works hard over a kitchen worktop, in a utility room, a garage or a workshop, above a bench or in a home office. Because the pack describes the beam as a narrow cone, it throws a tighter pool than a wide flood, useful over an island or a run of cabinets and less useful as the only light in a small hallway. If you are swapping one lamp in a row, change the whole row: a single 6,500K bulb among warm white ones stands out at once. We also list a 3.6W GU10 at 345 lumens in warm white 3000K, non-dimmable, if the rest of the room runs warmer.

This lamp dims, and LED dimming depends as much on the switch as on the bulb, so a trailing edge dimmer built for LED loads gives the smoothest result. Older halogen dimmers often have a minimum load well above 3.6W, which shows up as flicker or a dead bottom end of the dial, and wiring several of these to the same circuit helps that. The energy rating is E, and the pack prints a 15,000 hour life, which it also gives as 15 years. Each box holds a single bulb; the minimum order is 12, sold in multiples of 12.

Will this fit my existing halogen spotlights?

If the old lamp has a GU10 cap, the two stubby pins that push in and twist a quarter turn to lock, then yes. GU10 runs at mains voltage, so there is no transformer to check or replace.

What does 6,500K daylight white actually look like?

It reads as a crisp, slightly blue white rather than a creamy one, closer to bright midday light than to candlelight. It shows colours and detail clearly, which suits working areas more than sitting rooms.

Which kind of dimmer should I use with it?

A trailing edge dimmer designed for LED loads is the safest choice. At 3.6W the lamp draws very little, so a dimmer with a high minimum load may flicker or refuse to dim right down.

Is an IP rating given for this bulb?

The manufacturer does not print an IP rating on the pack and the specification gives none, so no figure is stated here. Treat it as an ordinary indoor lamp with no water protection claimed.

How long should one of these last?

The pack prints a 15,000 hour life and also gives that as 15 years, which works out at a little under three hours of use every day.