Fluorescent light energy rating a power 36 watt energy consumption 36 kwh1000h series philips master tl d socket g13 light colour daylight white light output 3 250 lumen colour temperature 6 500 k lifespan 20 000 h bulb shape tube light style glass bulb length 1 200 mm diameter 26 mm average annual electricity cost 01951 kwh 702 euros source average electricity cost based on figures from eurostat as of 2016