... AC Frequency: 50 to 60Hz Light source: SMD3,528 LED quantity:188pcs Luminous: 1600lm Beam angle: 120 degrees Lifespan: ... 80Ra Price with frame emergency time:90minsBenefits of LED tube Long lifetime-LED feature, reasonable lighting, no effect from switch ... No flash, home light, stable light, protection eyes Application of LED tube Living room, bedroom, kitchen, washroom, school, university, hospital ...