Led down light 1.Dimension: 3-8inch 2.LED quantity: 5-20W 3.Life Time:30-50K Hours 4FCC/PSE/CE certificate 1, ... lifespan: Toppo introduce the advanced thermal management technology of LED from Japan. The light decay of Toppo products is very low ... %40001.4%50002.2%60003.1%3,Application area Available for City,Buildings,Plaza,Hotel,Offices.,etc 3-8 inch (5-20W) LED Downlight