Discharge lamp power 150 watt energy consumption 150 kwh1000h series osram powerball hci t socket g12 light colour warm white light output 15 000 lumen colour temperature 3 000 k bulb shape tubular style glass bulb colour rendering index ra 88 ra length 105 mm diameter 25 mm average annual electricity cost 01951 kwh 2927 euros source average electricity cost based on figures from eurostat as of 2016