Halogen light pin socket bulb reflector lamp power 50 watt energy consumption 50 kwh1000h series osram decostar 51 eco equivalent to light bulb 65 w socket gu5 3 voltage 12 v light colour warm white luminous intensity 2 850 cd colour temperature 3 100 k beam angle 36 lifespan 5 000 h bulb shape reflector style bulb housing variable intensity dimmable uv filter length 45 mm diameter 51 mm average annual electricity cost 01951 kwh 97