Halogen light incandescent light energy rating d power 28 watt energy consumption 28 kwh1000h series osram halolux eco equivalent to light bulb 40 w socket b22 voltage 230 v light colour warm white light output 345 lumen colour temperature 2 900 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 546 euros source average