Led tube light energy rating a power 20 watt energy consumption 20 kwh1000h series philips master ledtube socket g13 voltage 230 v light colour warm white light output 2 000 lumen colour temperature 3 000 k beam angle 150 lifespan 40 000 h bulb shape tubular variable intensity not dimmable colour rendering index ra 83 ra length 1 200 mm diameter 28 mm average annual electricity cost 01951 kwh 39 euros source average electricity