Infrared light reflector lamp power 100 watt energy consumption 100 kwh1000h series philips infrared socket e27 voltage 230 v light colour infrared lifespan 5 000 h bulb shape reflector style glass bulb length 130 mm diameter 95 mm average annual electricity cost 01951 kwh 1951 euros source average electricity cost based on figures from eurostat as of 2016