How to build a portable 50W LED flashlight

This video shows the working of my portable DIY 50W flashlight and the assembly of it. Skip to 09:03 for the assembly. By the way, this video is not sponsored.
Music in this video:
1. Alan Walker - Fade [NCS Release]
Music provided by NCS (No Copyright Sounds)
: • Video
2. Alan Walker - Spectre [NCS Release]
Music provided by NCS (No Copyright Sounds)
: • Video
3. Electro-Light - Symbolism [NCS Release]
Music provided by NCS (No Copyright Sounds)
: • Electro-Light - Symbol...
Links to buy
DC-DC boost converter for driving LED:
www.aliexpress.com/item/32830...
50W LED:
www.aliexpress.com/item/32811...
Heatsink + fan + lens + reflector:
sea.banggood.com/20-100W-LED-...