... lifespan:50000h 4.warranty:3 years 5)hight quality with Competitive price T8 tube light product Description:1. SY-ITEM NO.: ... type(T) PC covers are availableBenefits:1. Solid-state, high shock / vibration resistant 2. No RF interference, No ... glass6. Maintenance free, easy installation 8. Low power consumption, high intensityApplications: 1. Bus, shuttle, railcar passenger interiors 2. Uninterrupted ...