Halogen light reflector lamp power 50 watt energy consumption 50 kwh1000h series osram halopar 38 socket e27 voltage 230 v light colour warm white luminous intensity 1 200 cd bulb shape reflector variable intensity dimmable uv filter length 140 mm diameter 125 mm average annual electricity cost 01951 kwh 976 euros source average electricity cost based on figures from eurostat as of 2016