Our earlier LED version was built on a standard FR4 circuit board (fiberglass and epoxy construction) with conformal coating. Fiber core boards can absorb moisture over time, which can compromise the integrity of the circuit.
The new LED package is built on a MCB circuit board (metal core construction) with conformal coating. Aluminum does not allow moisture to penetrate the circuitry and the added benefit is immediate heat transfer from the LED chip. Heat is the enemy of the LED chip. Aluminum allows efficient transfer of heat and promotes added life to the LED.