100w Floodlight Flashlight

High difficulty
Gonna need good electronics knowledge as no instructions.
Need an assortment of m3 bolts and nuts
The chinese 100w led is pretty inefficient, produces a lot of heat, even so i think the fan and heatsink i chose were overkill.

You need to saw off the corners of the heatsink
Also cut the raised plastic lip off the led array until its flush with the rest.

fusion360 file attached for ease of assembly, all bolts and inserts and electronics are shown there.

Need:
4s bms
switch
xt60 connector
lithium battery level indactor
8038 fan 12v 0.87A
100w led
12 18650 batteries
heatsink
step up transformer 400w 15A
step down transformer LM2596