These lights are intended for use in models, costumes and other applications where button actuation isn't easy. Instead they use a hall-effect sensor to allow switching by holding a magnet near the module.
The single-LED one has super low standby current, but the bigger multi-channel one is not putting the microcontroller into a proper sleep mode, meaning that the standby current is a bit too high for something powered from a small lithium cell.
Ali-X links (not a sponsor):-
Single LED
https://www.aliexpress.com/item/1005006922142508.html
10 LED
https://www.aliexpress.com/item/1005007552820054.html
As always - shop about and look for free shipping deals.
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