For large power flashlight, the heat capacity of the light source is often concerned.Most of traditional MCPCB we found on the market. The coefficients of heat conductivity of dielectrics are between 1~2 W/mK (1W or 2W in short). Of course, we can find 3W or even higher from the market. However, the copper or aluminum plate beneath the dielectric has coefficient of heat conductivity around 400W/mK and 200W/mK accordingly. It is clear that they have much better heat conducting performance than dielectric on top of them. This is causing dielectric to become the bottle neck of heat conducting & dissipating in traditional MCPCB.
The invention of thermoelectric separation of MCPCB is the best solution to overcome that bottle neck found in traditional MCPCB. Combining Super Pillar with thermoelectric separation concepts, to bypass dielectric and conduct heat directly through copper or aluminum pillar to copper or aluminum plate at the bottom. In this design, heat can be quickly take-away from components and dissipated through copper or aluminum plate at the bottom.
Now this MCPCB has been widely used in the flashlight, has been recognized by many customers.I hope that this sharing is useful to the flashlight enthusiasts on forum.
Good at designing and making MCPCB of thermoelectric separation! My email is firstname.lastname@example.org.