This LED candle is designed to serve as a direct, retrofit replacement for a 40W incandescent bulb, consuming a mere 5.5W of power to produce light of a comparable quality and brightness. An expected lifetime of 15,000 hours extends its longevity far beyond that of your old-fashioned filament bulbs, thereby reducing replacement and maintenance costs. Combined with the inherently superior efficiency of LED technology, this bulb can ultimately reduce your lighting bill by up to 90%!Such remarkable longevity can be attributed to the more efficient way in which LED bulbs produce their light, running much cooler than incandescent versions and placing less strain on their components. The thermal plastic body encasing this bulb further improves its ability to dissipate heat whilst an opal finish encourages even, softer light diffusion for a more aesthetically pleasing effect. This results in a highly efficient light bulb that looks great, consumes very little energy and lasts far longer than its predecessors.In some instances where this specific bulb is unavailable, an equal or higher spec version from another brand may be supplied.BC-B22d - Bayonet CapExtremely low power consumption of 5.5W (Equivalent to 40W)470 lumens15,000 hour lifespan4 Year manufacturer\'s warranty4000K -Cool White