Halogen light pin socket bulb power 100 watt energy consumption 100 kwh1000h series osram hlx xenophot socket gy6 35 voltage 12 v light colour warm white light output 3 600 lumen lifespan 50 h style glass bulb variable intensity dimmable average annual electricity cost 01951 kwh 1951 euros source average electricity cost based on figures from eurostat as of 2016