1.Aluminum power supply pcb for light 2.Quick turn round model 3.Short ... .No circuit on this board,only two holes. 1. Aluminum power supply pcb for light2. OEM PCB/PCBA3. Custom-made PCB,MCpcb ... two holes.7.Quick turn round light pcb.8.High quality & low cost, your trustworthy partner.Material:FR-4 / Hi Tg ... Immersion Tin,Immersion Silver,gold fingerCertificateRoHs,UL,ISO,IPC,SGS Power Supply Pcb,MC PCB