Golf ball bulb led bulb power 38 watt energy consumption 82 kwh1000h series osram led superstar classic p equivalent to light bulb 25 w socket e27 voltage 240 v light colour warm white light output 250 lumen colour temperature 2 700 k lifespan 25 000 h bulb shape golf ball colour rendering index ra 80 ra length 79 mm diameter 45 mm average annual electricity cost 01951 kwh 16 euros source average electricity cost based on figures from e