8W Dimmable LED GLS Filament Bulb B22 2700K - Clear Glass

This Knightsbridge 8W LED GLS filament bulb uses exposed LED filament strips inside a clear glass envelope to replicate the appearance of a traditional 60W incandescent bulb while drawing only 8W. The B22 bayonet cap fits standard UK lamp holders and the 2700K warm white output delivers 1120 lumens at a wide 325° beam angle, providing general ambient light across most of a room from a single fitting.

Designed for table lamps, floor lamps, ceiling pendants and any fitting that accepts a standard B22 GLS bulb, this filament LED suits interiors where the bulb itself is visible and the traditional filament aesthetic is wanted. The clear glass allows the four vertical LED filaments to be seen when the bulb is off, giving the appearance of classic tungsten wire filaments. When lit, the bulb casts warm ambient light without the harsh glare of some frosted LED alternatives.

The bulb is dimmable with most trailing-edge dimmers, allowing output to be reduced from full brightness down to approximately 10% depending on the specific dimmer model. The 60mm diameter and 104mm overall height match the proportions of a traditional 60-65W incandescent GLS bulb, so it fits the same lamp shades and fittings without protruding or looking undersized. At 138.6 lumens per watt, the bulb delivers significantly more light per watt than halogen or incandescent equivalents, reducing energy costs over the rated 15,000-hour L70B50 lifespan.

Product Specification Sheet

Is this bulb dimmable?

Yes. The bulb is compatible with most trailing-edge dimmers and can be dimmed from full brightness down to approximately 10%. Compatibility depends on the specific dimmer model — Knightsbridge recommends testing with your existing dimmer before installing multiple bulbs.

What incandescent wattage does this replace?

The 8W LED output of 1120 lumens is equivalent to a 60-65W traditional incandescent GLS bulb. This makes it suitable for general room lighting in table lamps, floor lamps and ceiling pendants where a standard domestic bulb would previously have been fitted.

What does 2700K mean?

2700K is the colour temperature of the light, measured in Kelvin. It produces a warm white light similar to traditional incandescent bulbs, with a slight yellow-orange tone that suits living rooms, bedrooms and dining areas. Higher colour temperatures (4000K+) appear cooler and whiter.

How long does the bulb last?

The L70B50 rating of 15,000 hours means that after 15,000 hours of use, 50% of a batch of these bulbs will still be producing at least 70% of their original light output. At an average 3 hours per day, this translates to approximately 13-14 years of use before noticeable dimming occurs.