This time, it's light, small, doesn't get hot, illuminates a wide area with high output, and can be attached to anywhere with a magnet for camping, fishing, or DIY lighting. Also compatible with tripods. Also useful as a work light.
This is a video of a rechargeable COB light with a carabiner and bottle opener.
It costs 1980 yen at a home center. Amazon sells it for 592 yen including tax.
I decided to compare both products because they seemed to be the same.

table of contents
0:00 Overview
1:49 Table of contents
2:31 1.What is COBLED light?
3:22 2. Impressions after using it
4:31 3. Difference in appearance between 2000 yen and 600 yen
8:49 4.Difference in brightness
11:09 5. Differences in battery life
14:14 6. Evaluation

This is a personal comparison, so please keep an open mind 😆