LIFX is a Wi-Fi enabled multi-coloured LED light bulb that you can control with your iPhone iPad Android smartphone or tablet;LIFX uses a free app to customise your bulb letting you remotely turn lights on & off dim the brightness & change the colour so you can set the mood whether you&re waking up in the morning or entertaining a date in the evening;LIFX automatically connects to your wireless network making set up easy & can be used in conjunction with multiple LIFX bulbs in one room; This energy efficient bulb consumes between 02W & 17W depending on brightness level & can last up to 40000 hours or 25 years based on 4 hours use a day With 4 hours use per day your LIFX bulb will pay for itself in approx 4-5 years & will reduce green house emissions by about 80kg per year It features a brightness level of 1017 lumens which is similar to a 75 watt incandescent light bulb but 4 to 8 times more efficient; Please note Wi-Fi features require an 80211bgn compliant router in range of a bulb & either i OS 60 or Android 40 on your tablet or smartphone LIFX bulbs are not intended for use in weather exposed areas