Halogen light pin socket bulb power 50 watt energy consumption 50 kwh1000h series osram halostar standard equivalent to light bulb 75 w socket gy6 35 voltage 12 v light colour warm white light output 910 lumen colour temperature 3 000 k lifespan 2 000 h style glass bulb variable intensity dimmable uv filter length 44 mm diameter 12 mm average annual electricity cost 01951 kwh 976 euros source average electricity cost based on figures fr