This LED GLS light bulb ES-E27 Edison screw (27mm) has the amazing ability to be switched from 827 warm white to 840 cool white with the click of a switch.This enables you to easily set the mood of your space by switching the colour of light emitted by the light bulb between warm white and cool white simply by the double click of a your light switch. Turn your kitchen, living room or home office from either a workplace or relaxing area.Easily change of color temperature with double click of wall switchThis LED light bulb consumes only 8W of power but gives out the same amount of light as a traditional 60W incandescent lamp. The lumen output is 806 and has an average rated life of 15,000 hours.Warm or Cool - the choice is yours?When you first decide to invest in LED lighting one of the main considerations is what kind of colour output is best ? Unlike traditional light bulbs LED light bulbs are capable of emitting different shades of light. Most LED GU10 light bulbs on the market are av