Aluminum Base LED Bulb PCB China Supplier -Hitech Circuits

● 2-layer PTH boards with aluminum layers require expensive pre-drilling, filling with insulation, and re-drilling steps to form plated through holes that will not cause short circuits.
●For 2-layer or multi-layer PCB manufactured with standard PCB process, we will use thermal conductive material instead of FR4 and laminated metal plate on the bottom for heat transfer.