Halogen light pin socket bulb reflector lamp power 50 watt energy consumption 50 kwh1000h series osram halopar 16 socket gz10 voltage 230 v light colour warm white luminous intensity 900 cd colour temperature 2 900 k lifespan 2 000 h bulb shape reflector variable intensity dimmable uv filter length 55 mm diameter 51 mm average annual electricity cost 01951 kwh 976 euros source average electricity cost based on figures from eurostat as of