Halogen light pin socket bulb reflector lamp power 35 watt energy consumption 35 kwh1000h series osram decostar 51 titan socket gu5 3 voltage 12 v light colour warm white colour temperature 3 000 k beam angle 10 lifespan 2 000 h bulb shape reflector variable intensity dimmable diameter 51 mm average annual electricity cost 01951 kwh 683 euros source average electricity cost based on figures from eurostat as of 2016