Halogen light pin socket bulb power 90 watt energy consumption 90 kwh1000h series osram halostar starlite socket gy6 35 voltage 12 v light colour warm white light output 1 800 lumen colour temperature 3 000 k lifespan 2 000 h average annual electricity cost 01951 kwh 1756 euros source average electricity cost based on figures from eurostat as of 2016