Led bulb energy rating a power 33 watt energy consumption 4 kwh1000h series osram superstar reflector equivalent to light bulb 20 w socket gu5 3 voltage 230 v light colour warm white light output 230 lumen luminous intensity 565 cd colour temperature 2 700 k beam angle 36 lifespan 25 000 h bulb shape reflector style bulb housing number of leds 1 variable intensity dimmable colour rendering index ra 80 ra length 52 mm diameter 50