Halogen light pin socket bulb energy rating d power 25 watt energy consumption 25 kwh1000h series osram halopin superstar osram halopin socket g9 voltage 230 v light colour warm white light output 260 lumen colour temperature 2 700 k lifespan 2 000 h style glass bulb variable intensity dimmable uv filter length 43 mm diameter 14 mm average annual electricity cost 01951 kwh 488 euros source average electricity cost based on figures from