... TUV Standard, PF≥0.97, THD<15%, life time is 20,000h, 220-240V,50Hz C) Ordinary Standard, ... Source-T5 pure tri-phosphor tube,Ra≥82,life time greater than 10000hrs ModelColour TemperatuareLuminous Flux(Lm ... Product Feature 1, Energy saving 30%~45% than traditional T8 , T10 tube.2,Good quality with competitive ... ,Pre-heat function: make the T5 tube long life time7, No flicker, near to natural light,good ...