JCB 4.9W LED Golf Ball Bulb B22 6500K Daylight - Non-Dimmable

The JCB 4.9W LED golf ball bulb uses a B22 bayonet cap and produces 470 lumens at 6500K daylight colour temperature, providing a direct replacement for traditional 40W incandescent golf bulbs. The compact 45mm diameter globe fits smaller fittings where standard A-shape bulbs would be too large, including desk lamps, wall sconces, bedside fittings and pendant lights with exposed bulb designs.

Designed for spaces where crisp, cool-toned light aids task performance, the 6500K output suits home offices, workshop benches, sewing tables, kitchens and bathrooms where colour accuracy and visual clarity are priorities. The 180° beam angle distributes light widely from the compact globe, reducing hard shadows and filling the fitting's aperture evenly. The bulb is non-dimmable and runs on standard 230V AC mains without requiring external drivers or transformers.

The golf ball form factor measures 78mm in total height including the B22 cap, making it 15-20mm shorter than a standard GLS bulb and better suited to compact fittings where vertical clearance is limited. At 4.9W the bulb draws 87% less power than the 40W incandescent it replaces, reducing running costs while maintaining equivalent light output. The bulb carries an Energy Rating of F under the updated EU energy labelling scale introduced in 2021, which recalibrated ratings to account for LED efficiency improvements.

The frosted polycarbonate globe diffuses the LED chip array inside, preventing visible diode points and creating a uniform glow when viewed directly. JCB rate the bulb for up to 10,000 hours of use, equating to approximately 10 years at 3 hours per day average usage. The B22 bayonet cap fits all standard UK and Commonwealth bayonet fittings with a quarter-turn twist-lock action.

What does 6500K daylight colour temperature mean?

6500K produces a cool white light with a blue-toned cast, similar to overcast daylight or north-facing window light. It increases visual contrast and colour accuracy compared to warm white bulbs, making it useful for detailed work, reading, and task lighting. Some users find 6500K too clinical for living spaces and prefer warmer tones (2700K-3000K) in bedrooms and lounges.

Will this bulb work in a dimmer switch circuit?

No. The bulb is non-dimmable and will flicker, buzz or fail prematurely if used with a dimmer. If the fitting is on a dimmer circuit, either replace the dimmer with a standard switch or choose a dimmable LED golf bulb instead.

How does the light output compare to a 40W incandescent?

At 470 lumens the JCB bulb produces approximately the same light output as a traditional 40W incandescent golf bulb, but draws only 4.9W of power. The colour temperature differs — incandescent bulbs produce warm 2700K light, whereas this JCB bulb outputs cool 6500K daylight.

What fittings suit a golf ball bulb?

Golf ball bulbs work in any B22 bayonet fitting where the compact 45mm globe diameter and 78mm total height fit the shade or aperture. Common applications include small table lamps, wall sconces, ceiling pendants with decorative shades, and bathroom mirror lights where a full-size GLS bulb would be too large.