Halogen light energy rating c power 400 watt energy consumption 400 kwh1000h series philips plusline es socket r7s voltage 230 v light colour warm white light output 8 700 lumen colour temperature 2 900 k lifespan 2 000 h bulb shape halogen rod style glass bulb variable intensity dimmable length 117 mm diameter 11 mm average annual electricity cost 01951 kwh 7804 euros source average electricity cost based on figures from eurostat as o