... flux:320LMLED working temperature:<60°Temperature:-40--40°Drive: constant current driveBrightness degradation:7%-10%/1hk(Edison),3%-5%/1kh( ... to airport, station, exhibition hall, library, hospital, school, factory and other public places Ningbo Zhongda Electric&tools Co.,Ltd ... life more energy-saving and environment protection.Remarks: Our factory supply OEM service, can print customer's trademark. ...