Energy saving bulb led bulb fluorescent light energy rating a power 20 watt energy consumption 20 kwh1000h series philips master ledtube socket g13 voltage 240 v light colour daylight white light output 2 000 lumen colour temperature 6 500 k beam angle 150 lifespan 40 000 h colour rendering index ra 83 ra length 1 500 mm average annual electricity cost 01951 kwh 39 euros source average electricity cost based on figures from eurostat a