Halogen light pin socket bulb power 400 watt energy consumption 400 kwh1000h series osram hlx xenophot socket g6 35 voltage 36 v light colour neutral white light output 16 000 lumen colour temperature 3 550 k lifespan 50 h style glass bulb variable intensity dimmable length 60 mm diameter 15 mm average annual electricity cost 01951 kwh 7804 euros source average electricity cost based on figures from eurostat as of 2016