Led bulb golf ball bulb energy rating a power 15 watt energy consumption 15 kwh1000h equivalent to light bulb 100 w socket e27 voltage 230 v light colour warm white light output 1 521 lumen colour temperature 2 700 k beam angle 150 lifespan 15 000 h bulb shape golf ball variable intensity not dimmable colour rendering index ra 80 ra length 127 mm diameter 61 mm average annual electricity cost 01951 kwh 293 euros schaltzyklen 50