... .Multiply types to export all over the world:HE serie:8W,14W,21W,28W,35W;HO serie:24W,39W,54W,80W ... .65/0.95,THD<10-30%.Comparing with T5 single tube series, light efficiency is improved 2 times.5.Color Temperature:2700K/4100K ... and goodliness.9.Using high efficiency ballast,10000 hours lifetime. T5 2*36W lamp fixture