This energy saving LED golf ball light bulb is designed to replace the inefficient, outdated filament bulbs that have been in common use for decades. It produces light of the same brightness and quality as the bulbs it replaces, yet uses only a fraction of the power to do so, providing real long-term savings on energy bills.The bulb emits 470 lumens of cool white 4000K light, ideal for all kinds of use around the home, while its opal finish produces a softer light and reduces glare. The BC B22d bayonet cap retrofits to existing light fittings, making installation easy. Its thermal plastic body helps to dissipate heat away from the bulb\'s componentry, resulting in a more reliable, longer lasting light bulb with an impressive average rated light of 25,000 hours. It is also fully dimmable, and is compatible with both leading and trailing edge dimmers. Please check the manufacturer\'s guidelines for compatibility.25,000 hour rated life12,500 switching cyclesSuitable for dimmingB22d - Bayonet Cap (BC) fitting4000K cool white colour appearance470 lumens40W incandescent equivalentDimensions: Diameter = 37mm, Height = 100mm