GU10 LED Clear Glass Bulb 3.6W 345lm Dimmable - Warm White 3000K

A GU10 spotlight with a clear glass body, drawing 3.6W and giving 345 lumens. The GU10 cap is the two pin twist and lock type used in most UK downlights and track spots, so it goes straight into an existing fitting with no rewiring and no driver to add. The light is warm white at 3000K, a shade cleaner than the 2700K of an old incandescent bulb but still firmly on the warm side of neutral. The beam is a 36 degree cone rather than a flood, and the clear faceted lens leaves the LED chips visible behind the glass.

These suit ceilings where you want light landed on something rather than washed across the whole room: kitchen worktops under a run of spots, a line of downlights over an island, shelving, alcoves and picture walls. A 36 degree cone puts a defined pool on the surface below each lamp, so the spacing of your fittings matters more than it would with a wider beam. In a sitting room or a dining area on a dimmer, warm white at 3000K stays comfortable as you bring the level down. The clear glass body also reads differently from a frosted one where the fitting leaves the lamp on show.

It dims, which is not a given on a GU10 LED, so check the dimmer as well as the lamp: switches built for 50W halogen loads often have a minimum load well above what a 3.6W bulb draws, and a trailing edge LED dimmer gives smoother control at the bottom of the dial. The pack prints a 50W replacement figure and a 15 year lifespan, and the energy rating is E. It is rated IP20, so it is for indoor, dry positions. Each listing is one bulb, ordered in multiples of 12. A non-dimmable version of the same 3.6W, 345lm, 3000K GU10 is on sale here too.

Will this fit the halogen spotlights I already have?

If your existing lamps have a GU10 cap, the two stubby pins that twist and lock into place, this one goes straight in. Check the old bulb rather than the fitting, because GU10 and the low voltage MR16 look similar and are not interchangeable.

How bright is 345 lumens in practice?

The pack gives it as a 50W replacement, so it lands close to the output most people are used to from a 50W halogen spot, while drawing only 3.6W to do it.

What kind of dimmer should I use?

A trailing edge dimmer designed for LED loads. Older halogen rotary dimmers usually need a higher minimum load than a 3.6W lamp provides, which tends to show up as flicker or a dead bottom half of the dial.

How wide is the light it throws?

The beam angle is 36 degrees, so each lamp drops a defined pool of light rather than filling a whole room evenly. Plan your spacing around that if you are lighting a worktop or a run of shelves.

Is the light warm or cold?

Warm white at 3000K as printed on the pack. That is a clean warm tone, softer than a daylight lamp and slightly crisper than a traditional filament bulb.

How many do I have to buy?

Each listing is a single bulb and the minimum order is 12, sold in multiples of 12, so quantities run 12, 24, 36 and upwards from there.