... 2,Energy Saving 30-45% 3,ENEC,GS,CB Approved T5 Indoor Light Fixture Product Description 1, Specification-8W,14W,21W,28W,35W2 ... environment use solid-stated mercury, 38% less usage of glass and phosphor powder compared to T8 lamps.5, Good Color Rendering ... -heat function: make the T5 tube long life time7, No flicker, near to natural light,good for eyes8, slim and light weight9, ENEC,GS ...