high thermal conductivity CEM-3

Fr4 thermal conductivity Fr4 thermal conductivity is very Low, compare with Aluminum PCB, Fr4 thermal conductivity is around 0.25W/m.k Aluminum PCB thermal conductivity Min. 0.8 w/m.k However, some LED lights, because the need for withstand voltage, the need for better withstand voltage with the better material, Many LED manufacturers [...]