Halogen light energy rating c power 120 watt energy consumption 120 kwh1000h series osram haloline eco socket r7s voltage 230 v light colour warm white light output 2 300 lumen colour temperature 2 950 k lifespan 1 000 h bulb shape halogen rod style glass bulb variable intensity dimmable length 118 mm diameter 12 mm average annual electricity cost 01951 kwh 2341 euros source average electricity cost based on figures from eurostat as of