LED t8 tube 1.Epistar or Nichia chip,25w,2500lm 2.High CRI,uniform light,no dark area 3. ... .95 4.3 year warranty,CE&RoHS Technical Specifications for 25w LED t8 tube: Lighting sourceHigh brightness Epistar or Nichia SMDs ... 90-120lm per watt Power factor 0.95 Power consumption 25W Fittings G13 bi-pin Lifetime 35,000 hrs Beam angle ...