Led bulb energy rating a power 10 watt energy consumption 10 kwh1000h series osram led star classic a equivalent to light bulb 60 w socket e27 voltage 230 v light colour warm white light output 806 lumen colour temperature 2 700 k lifespan 15 000 h bulb shape standard variable intensity not dimmable mercury free length 110 mm diameter 60 mm average annual electricity cost 01951 kwh 195 euros source average electricity cost based on f