Led spot pin socket bulb reflector lamp energy rating a power 4 watt energy consumption 4 kwh1000h equivalent to light bulb 35 w socket gu10 voltage 230 v light colour warm white light output 180 lumen luminous intensity 350 cd colour temperature 2 700 k beam angle 36 lifespan 25 000 h bulb shape reflector style bulb housing variable intensity dimmable colour rendering index ra 80 ra length 54 mm diameter 50 mm average annual electri