... 3.lighting distributed evenly ,no dark area 4.cost effictive 1.5m UL & cUL Listed T8 Tube LightOur LED tube is made ... , T8 specs, inner high efficiency constant current driver, with very little lumen decay and 50, 000 hour lifespan replacing fluorescent lamp, brighter ... , school, place where there need energy saving and high color rendering index lighting, etc. 1.5m UL / cUL Listed led T8 Tube Light ...