Halogen light reflector lamp power 50 watt energy consumption 50 kwh1000h series osram halospot 111 socket g53 voltage 12 v light colour warm white luminous intensity 20 000 cd colour temperature 2 800 k beam angle 6 lifespan 2 000 h bulb shape reflector variable intensity dimmable length 65 mm diameter 111 mm average annual electricity cost 01951 kwh 976 euros source average electricity cost based on figures from eurostat as of 2016