CCFL energy saving spiral light Work normally in low temperature of -30 Save more than 40% energy than traditional energy saving light No uv, no flicker and no blue ray radiation comparing with the LED light Lifetime as long as 50000h Applied the ce certification. Applied light head: E27 Specifications: Wattage:20/24w Color rendering index:85-95ra Voltage:180-264v Color temperature:2700/4500/6400k. Standard export packaing.