Summary

easy-to-build lamp for everyone who need a small tabletop lamp with batteries

you needed:

1. 12v UPS electronics with 2x 18650 and powered via USB type-c
   https://aliexpress.ru/item/1005005195601595.html?spm=a2g2w.orderdetail.0.0.20ef4aa6R6wjBf&sku_id=12000033024327896

2. 80mm led ring 12v
   https://aliexpress.ru/item/1005007574214724.html?spm=a2g2w.orderdetail.0.0.42914aa62VC8sh&sku_id=12000041352927583

3. small locking switch 7x7mm
   https://aliexpress.ru/item/10000004160291.html?sku_id=20000000014243043&spm=a2g2w.productlist.search_results.6.1bf7783bybLXRL

4. М3x10 self-tapping screws 4pcs

5. some wires