1. Ultra bright LED downlight, 5w, 2.5 inch 2. Nichia LEDs, frosted PMMA lens, ... generation. LED recessed downlight has a lifespan of 35,000 hours which means 17 years at 8 hours a day, full aluminum alloy ... base.Lifetime: 35,000 hrs.Beam angle: 100°Heat sink: Aluminum alloy & optics frosted plastic.Light guide plate: Frosted PMMA.IP ...