Diy hand flashlight

I made this flashlight using 5 powerful leds cree,one carbone fiber tube,one long heatsink and some electronics part that every electronics entheusiast have .
The particularity of this flashlight is the shape that is like workshop hand torch and the use of 18 volts leds in parallel.
I highly recommand to use thermal paste for these leds.

BOM list:
-one printing of each .stl files.

-5x 18volts leds ( doesn't matter what color you choose ).
https://fr.aliexpress.com/item/32901209129.html

-one carbon fiber tube (OD=22mm , ID =20mm , L=cut at approximately 328mm).
https://fr.aliexpress.com/item/32577492172.html

-one long heatsink (300mm long).
https://fr.aliexpress.com/item/32806821181.html

-one on/off 5mm round switch .
https://fr.aliexpress.com/item/32791477099.html

-5x 18650 battery with enought power for this use.

-4x little wood screws (2x20mm)

-somes electric wires, cyanoacrylate glue, thermal paste,spring...