Fluorescent light energy rating b power 8 watt energy consumption 8 kwh1000h series philips master tl mini socket g5 voltage 230 v light colour neutral white light output 470 lumen colour temperature 4 000 k lifespan 10 000 h bulb shape tube light variable intensity dimmable diameter 16 mm average annual electricity cost 01951 kwh 156 euros source average electricity cost based on figures from eurostat as of 2016