... Samsung 5630 ultra bright, up to 115lm/w 2.PC cover under Fire Rating of UL ... angles mixing lighting design with excellent heat dissipation, T8 specs, inner high efficiency constant current driver, ... with less degradation and 50000 hrs lifespan replacing T8 fluorescent light, brighter than fluorescent light and ... 5630 LED chip,Ultra bright up to 115lm/w ,Ra>832,electric wave resistant, Instant start3, ...