We will make series of peltiers wires --ive of one peltier and +ive wire of other peltier as so on at the end first and last  two wires will remain left. These two red +ive wire and black --ive wire will be connected to volt boosting circuit's input side of the circuit. And LED wires +ive and --ive will be connected to the circuit +ve and --ve terminals respectively output side of the circuit. At the end we fix the LED lamp with heat sink using Silicone Sealant.

Final Result