Daylight bulb fluorescent light golf ball bulb energy rating a power 32 watt energy consumption 32 kwh1000h series philips master tl d eco socket g13 light colour daylight white light output 2 850 lumen colour temperature 6 500 k lifespan 15 000 h bulb shape golf ball style glass bulb diameter 26 mm average annual electricity cost 01951 kwh 624 euros source average electricity cost based on figures from eurostat as of 2016