Fluorescent light pin socket bulb energy rating a power 55 watt energy consumption 55 kwh1000h series philips master pl l socket 2g11 voltage 202 v light colour daylight white light output 4 500 lumen colour temperature 6 500 k lifespan 20 000 h bulb shape tube light colour rendering index ra 80 ra length 542 mm diameter 18 mm average annual electricity cost 01951 kwh 1073 euros source average electricity cost based on figures from euro