assembled pcb for led light: 1. 2.0W aluminum base material 2. 1.0 ... double side PCB, multilayer PCB, especially in aluminum PCB, DVD PCB and power supply PCB. ... shock resistant and anti-yellow, in particular for high-class LED lightening products. 3. Thermal Conductive ---material ... dielectric constant (imported or from local supplier), Aluminum base laminate, Metal core AluminumSurface Finish:Hot air ...