led light circuit board 1.PCB Quality: UL, ISO9001:2008, ... PCB for both low power and high power LED products.3. Board thickness: 0.4~3.2 mm Aluminum ... , CEM-1, Aluminium Base, Rogers, Taconic,etcFinish Board Thickness0.2mm-3.8mm(8mil-150mil)External Copper Thickness35um ... Red,White, Blue, Matt Green, Matt Black etc.Surface FinishingHASL,Immersion Silver/Gold, OSP,Plate Gold, Gold Finger LED Light Board