Product Description: Aluminum PCB (Alu PCB) is a type of printed circuit board (PCB) which is made from aluminum metal sheet. The aluminum substrate provides superior electrical insulation, and also excellent heat dissipation, making it an ideal choice for high-reliability applications. The board has a thickness of 1.5mm and a copper thickness of 1oz, and its surface finish is HASL (Hot Air Solder Leveling). The silkscreen is black, and the board does not require impedance