A value pack of 10 fully dimmable 5W LED GLS light bulb is part of a wider decorative range that has been developed by Crompton Lamps as a means of replacing traditional incandescent light bulbs.For those of you already lamenting the demise of these incandescent light bulbs - never fear. Their enduring popularity led Crompton to develop this new range of LED equivalents.Each light bulb in the range delivers form and function equally with the same gorgeous, retro styling no longer stymied by the restraints of outdated filament technology.The tungsten filaments found in these older light bulbs have now given way to four LED filaments, resulting in a gorgeous, traditional aesthetic that belies the light bulb\'s ultra-modern specification. These filaments, albeit similar in appearance, are much more efficient and robust than their traditional counterparts. Where a traditional light bulb might use approximately 40W to produce 470 lumens, these modern LED GLS light bulbs use just 5W. This - coupled with the light bulb\'s vastly superior nominal lifetime of 10000 hours - has the potential to reduce lighting bills by up to 90%.The light bulb\'s standard GLS shape and ES-E27 Edison screw (27mm) cap enable the light bulbs to retrofit directly to any existing fitting designed to accept light bulbs.Dimmable - Compatible with both leading and trailing edge dimmers. Also known as an A60 light bulb.This GLS is a newer product from Crompton Lamps and supercedes their old GLS part codes: LCG5CESWW, E28CES, PG40CES, PG60CES.Please visit the manufacturer\'s website for up-to-date dimmer switch compatibility lists for this Crompton Lamps LED GLS 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 GLS Light Bulb.