3w LED PCB with 3 lights: 1. 2.7W aluminum base ... manufacturing single side PCB, double side PCB, multilayer PCB, especially in aluminum PCB, DVD PCB and power supply PCB. Features of Aluminum ... products. 3. Thermal Conductive ---material with above 2.0 (W/m·K), up to 8(W/m·K) ItemTest ... 4, CEM-1, CEM-3, High Frequency Laminate with various dielectric constant (imported or from local supplier), Aluminum ...