1. T5doubl tube fixture for commercial and indutrial lighting 2. PF>0.99, THD<10%, 3. 30000-hour rated life 4. CE,ROSH,Reach ... XGYT52004-B T5 Dual Tube FixtureCertificates: CE, RoHS, ENEC, GS,CB,ULProduct Advantages: A ... 50°C cannot go over five hours for safety issues. T5 double tube fluorescent lamps industrial lighting fixture with PC cover