Led bulb energy rating a power 13 watt energy consumption 13 kwh1000h series osram star classic equivalent to light bulb 100 w socket e27 voltage 230 v light colour daylight white neutral white light output 1 522 lumen colour temperature 4 000 k lifespan 15 000 h bulb shape standard style glass bulb number of leds 1 variable intensity not dimmable colour rendering index ra 80 ra length 126 mm diameter 62 mm average annual electricity c