These coloured decorative golfball (round) light bulbs are designed to replace traditional 25W incandescent Harlequin round light bulbs. As they are LED golfball (round) light bulbs, their wattage is much lower than their incandescent counterparts.These are special purpose decorative light bulbs, ideal for decorative light strings, Christmas lights, or entertainment and hospitality areas. They are internally coated, so offer a vibrant, fade-resistant colour. The light bulbs have an average rated life of 15,000 hours and have an IP65 rating, meaning they are long-lasting and suitable for outdoor use. The B22d bayonet cap will retrofit to existing light fittings, making it easy to replace your old light bulbs.Instant full light. Fade resistant internal coating. 4W LED, replaces 25W incandescent light bulbs. Not suitable for dimming.Features a BC-B22d bayonet (22mm) cap base.Please note that even though the light bulb itself is IP65 rated, it must be used in a suitable IP65 rated socket in order for it to be used outside safely.Need more help in choosing a suitable light bulb? Read our guide What is a Golfball Light Bulb.