When evaluating LED Torch PCBs, prioritize Thermal Conductivity and Substrate Material. For high-power torches, Aluminum-clad PCBs (Metal Core PCBs) are essential to dissipate heat effectively and prevent LED burnout. Ensure the Copper Thickness is at least 1oz or 2oz for stable current flow, and verify that the Solder Mask is high-reflectivity white to maximize light output. Additionally, check for Integrated Circuit (IC) compatibility if the torch requires multiple modes like SOS, dimming, or strobe.