Energizer 5W Dimmable LED Golf Ball Filament Bulb - B22, 2700K Warm White

The Energizer 5W LED golf ball bulb uses exposed filament technology inside a clear glass sphere, giving it the appearance of a traditional incandescent bulb while running on LED efficiency. The B22 bayonet cap fits standard UK light fittings, and the 5W power draw delivers 550 lumens at 2700K warm white — equivalent to a 40W incandescent in light output but using 87% less energy.

Designed for decorative and exposed-bulb fittings where the bulb itself is visible, the filament construction works well in pendant lights, chandeliers, wall sconces and table lamps where the bulb forms part of the aesthetic. The golf ball shape measures approximately 45mm in diameter, making it smaller than standard GLS bulbs and suitable for compact shades and multi-bulb fittings. The dimmable function allows brightness to be adjusted from full 550-lumen output down to a low ambient glow, compatible with most leading-edge and trailing-edge dimmers.

The clear glass envelope and visible amber-toned LED filament give the bulb a vintage character that pairs well with industrial, mid-century and traditional interiors. At 2700K the light sits in the warm white range, closer to the colour of traditional tungsten bulbs than cooler daylight LEDs. Energizer rates the bulb for a 15-year average lifespan based on typical domestic use, reducing replacement frequency compared to halogen or incandescent alternatives. The Energy Rating of E reflects the lower efficiency of filament-style LEDs compared to modern enclosed chip designs, but still represents significant savings over non-LED bulbs.

Is this bulb compatible with dimmer switches?

Yes. The bulb is dimmable and works with most leading-edge and trailing-edge dimmers. Dimmer compatibility can vary by model, so if you experience flickering or limited dimming range, check that your dimmer is rated for LED loads.

What does the 40W replacement rating mean?

The 550-lumen output matches the light produced by a traditional 40W incandescent bulb, but this LED version draws only 5W of power. You get the same brightness while using significantly less energy.

What fittings suit a golf ball bulb?

Golf ball bulbs work well in compact pendant shades, chandeliers with visible bulbs, wall sconces, and decorative table lamps where the smaller 45mm diameter fits better than a standard GLS bulb. The clear filament design makes it suitable for exposed-bulb fittings.

How warm is 2700K compared to other colour temperatures?

2700K sits in the warm white range, producing a soft amber-toned light similar to traditional incandescent bulbs. It's warmer than 3000K and much warmer than daylight LEDs at 5000K-6500K, making it better suited to living rooms, bedrooms and dining areas where a cosy atmosphere is preferred.