Shenzhen Hejin Circuit Co.,Ltd is a leading high power aluminum pcb exporter,Website:http://www.hjmcpcbs.com, and one of the leading China high power aluminum pcb manufacturers, producers and suppliers. We export high quality products, and we are professional at high power aluminum pcb assembly and oem.LED mining /high bay lamp,Thermal conductivity: 2W/M-KBoard Thickness: 1.6MMCopper Thickness: 70UMBase Material:AluminumSurface Finishing: Lead free HASLSolder mask color: white