Specification 1) Volts: 110-127V / 220-240V 2) Frequency: 50 / 60Hz 3) C.C.T. (K) : 2700-6900K 4) C.R.I. (Ra) :>80 5) AVG. Life:8000 hours 6) Suitable for electronic or magnetic ballast 7) Power: 9W, 13W, 18W, 27W 36W Application .Good for using for a long time in public places.Home .Office .Shopping mall, Hotel Features Power Saving High lumens use less energy. Long Life Cycle Life cycle is 8000 hours, about 10 times the regular incandescent lamp. Quality Brightness Smooth, high, lower decreasing brightness. Choice of colors. Easy installation