Halogen light incandescent light energy rating c power 42 watt energy consumption 42 kwh1000h series sylvania halogen classic eco equivalent to light bulb 55 w socket e27 voltage 230 v light colour warm white light output 630 lumen colour temperature 2 800 k lifespan 2 000 h bulb shape standard style glass bulb variable intensity dimmable length 97 mm diameter 55 mm average annual electricity cost 01951 kwh 819 euros source average