Wattage: 0.2 W to 18 W (18 W at full brightness). At the average setting (50% brightness), one bulb consumes only 9 W * Brightness of 1,017 lumens at maximum brightness, similar brightness to a 75 watt incandescent light bulb but 4 to 8 times more efficient * Rated to last 40,000 hours (27 years at 4 hours use per day) * Software controlled multi-colored LED. Dimmable via app. Capable of displaying 16 million colors and a white light kelvin range of 2700-8000K * At 4 hours use per day, your LIFX bulb will pay for itself in approx 4-5 years and will reduce green house emissions by 80Kg per year