Halogen light incandescent light energy rating d power 28 watt energy consumption 28 kwh1000h series philips ecoclassic30 a55 equivalent to light bulb 35 w socket e27 voltage 230 v light colour warm white light output 340 lumen colour temperature 2 900 k lifespan 2 000 h bulb shape standard style glass bulb variable intensity dimmable diameter 55 mm average annual electricity cost 01951 kwh 546 euros source average electricity cost bas