Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3398660.
DJI Mavic 2 Bright Forward LED Light with BL-5B battery and USB charger
Components used:
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LED Chip 1W Natural White https://www.aliexpress.com/item/High-Power-LED-Chip-1W-3W-10W-20W-30W-50W-100W-LED-Bead-Natural-Cool-Warm/32705751357.html?spm=a2g0s.13010208.99999999.260.33f13c000lh94W
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BL-5B Battery https://www.aliexpress.com/item/-/32837886482.html?spm=a2g0s.13010208.99999999.266.33f13c000lh94W
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Lipo Battery Charging Board https://www.aliexpress.com/item/-/32874577354.html?spm=a2g0s.13010208.99999999.272.33f13c000lh94W
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Toggle Switch 2 Position https://www.aliexpress.com/item/20pcs-SS12D00G3-2-Position-SPDT-1P2T-3-Pin-PCB-Panel-Mini-Vertical-Slide-Switch-Favorable-Price/32799198160.html?spm=a2g0s.13010208.99999999.278.33f13c000lh94W
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Some wires
Total price is less than $5. Most expensive part is battery $3. New battery allows to be on for more than an hour.
Attach some metal plate to the back of LED for heat dissipation to avoid flickering. I used a piece from paper knife.
Or simply use holder for 25mm torch if have one.