K Series 6W GU10 LED Spotlight Bulb 50W-eq 500lm 100° - Cool White

The K Series GU10 LED spotlight bulb is a directional mains-voltage lamp drawing just 6W while replacing a typical 50W halogen reflector. It twists into a standard GU10 holder and runs straight from the 220-240V mains, so no separate transformer or driver is needed. The PAR16 spot shape pushes light forward through a wide 100 degree beam, giving an even, broad spread rather than a tight pinpoint. Output is 500 lumens at a 4000K cool white tone, a crisp, neutral light that suits working and display areas. In US terms this is a GU10 reflector or spot lamp, sometimes grouped with PAR16 bulbs.

Because the beam opens to 100 degrees, the K Series throws a generous pool of light from each fitting, which makes it well suited to recessed downlights and spotlight bars in kitchens, hallways, living rooms and home offices. The wider angle means fewer dark gaps between fittings, so it works for general task and accent lighting across a ceiling run. The cool white 4000K tone keeps surfaces and colours looking clear, which helps in kitchens and workspaces. As an indoor-only bulb it should be kept to dry rooms and used inside enclosed or open fittings that suit GU10 lamps.

Built on a GU10 twist-lock cap, the bulb measures Ø50 by 56 mm and weighs only 18 g, matching the standard reflector footprint so it drops into existing GU10 fittings. The light source is a PAR16 LED rated to 20,000 hours, with a colour rendering of Ra 80 and an efficiency of 93 lm/W. This version is non-dimmable, so it is best paired with standard on/off switching rather than a dimmer circuit. The lamp has a white body and a cool white 4000K output. The K Series is offered in further wattage and tone options across the range to match different fittings.

Product Specification Sheet

Range Datasheet

Which fitting does this bulb need?

It has a GU10 twist-lock cap, the standard mains spotlight fitting found in most recessed downlights and spotlight bars. You push it in and give a quarter turn to lock it. Being GU10, it runs straight from the mains and needs no separate transformer or driver.

What old bulb wattage does it replace?

The LED itself draws only 6W but gives the brightness of a typical 50W halogen reflector, producing 500 lumens. That is a large cut in running cost for a comparable light output. It is rated for around 20,000 hours of use.

What colour and beam does it give?

The light is a 4000K cool white, a crisp and neutral tone that keeps colours and surfaces looking clear. The beam opens to 100 degrees, so it spreads a broad, even pool rather than a narrow spot. That makes it a good general-purpose choice across kitchens, hallways and offices.

Is this bulb dimmable?

No, this version is non-dimmable, so it should be used on standard on/off switching rather than a dimmer circuit. Fitting it to a dimmer may cause flicker or buzzing and can shorten its life. If you need dimming, choose a lamp rated for it instead.