Halogen light pin socket bulb reflector lamp power 50 watt energy consumption 50 kwh1000h series philips twistline alu socket gu10 voltage 230 v light colour warm white colour temperature 2 800 k beam angle 40 lifespan 1 000 h bulb shape reflector variable intensity dimmable diameter 51 mm average annual electricity cost 01951 kwh 976 euros source average electricity cost based on figures from eurostat as of 2016