Designed to replace grossly inefficient and desperately unreliable 40W filament light bulbs, this value pack of 10 dimmable LED candle light bulbs produce light of an equal quality and brightness but consumes just 5W in doing so.This remarkable efficiency - plus a rated lifetime of 15,000 hours - has the potential to yield savings of up to 88% when considering energy expenditure alongside maintenance and replacement costs.With a frosted finish and thermal plastic casing this LED candle dissipates heat more effectively than comparable materials, placing less strain on its components and thus extending its longevity even further.Recommended for Indoor lighting use only. Instant full light.Features a BC-B22d bayonet (22mm) cap base.This Candle is a newer product from Crompton Lamps and supercedes their old Candle part codes: 9202, LCBC4WW-DIM.Please visit the manufacturer\'s website for up-to-date dimmer switch compatibility lists for this Crompton Lamps LED Candle light bulb before purchase.To find the answers to some common questions about LED dimming, please read our guide Dimming for Dummies.Need more help in choosing a suitable light bulb? Read our guide What is a Candle Light Bulb.