Halogen light incandescent light energy rating d power 18 watt energy consumption 18 kwh1000h series osram halogen classic a eco equivalent to light bulb 23 w socket e27 voltage 230 v light colour warm white light output 170 lumen colour temperature 2 800 k lifespan 2 000 h bulb shape standard style glass bulb variable intensity dimmable uv filter length 95 mm diameter 55 mm average annual electricity cost 01951 kwh 351 euros source