Halogen light candle bulb energy rating d power 18 watt energy consumption 18 kwh1000h series osram halogen classic b eco equivalent to light bulb 23 w socket b22 voltage 230 v light colour warm white light output 170 lumen colour temperature 2 800 k lifespan 2 000 h bulb shape candle style glass bulb variable intensity dimmable uv filter length 105 mm average annual electricity cost 01951 kwh 351 euros source average electricity cos