... unstable voltage.4, Special circuit design, each LED can work separately thus it can avoid the ... influence that a broken Led causes.5, working Temperature: -10oC-40oC6, No ... 4600Lm(Natural white), >4500Lm(warm white)6, Colour: White7, LED Type: SMD 35288, Life: 50000Hours9, Operating temperature: 10 ° ... School, Colleges, Universities ect. 300*300*14mm, 10-25W Epistar Led Lamp