Hi there, thcnk you for watching the video and leaving a comment! It was quite a while back when I made the video and unfortunately I didn't make any measurements as to the time it stays on and so forth, but I had mine in a closet, which I didn't open too often and I only recharged it once or twice, before the lithium cell inside swelled up - in both of my units. I have planned for a folllow-up video on that and where I'll try to replace the cell inside etc, but that video isn't yet finished unfortunately. I'll let you know when it is though :) Sorry I didn't have a better answer. I would test the lights now for you if I could, but since the battery cells in both my units had to be discarded I do not have the original cells and therefore charge capacity and times at hand to test. So maybe there is a quality issue with these, why they are so cheap (maybe they put b-grade cells inside to get rid of them while still being able to sell a product). I don't know, but at least I have a follow-up video in my plans. Have a nice day! /DrMBalmer

Very often

Hi, thank you for watching the video! I am not sure what "Oples" means, but I suspect you mean it is a waste of money for this product? Sure, considering what it cost, I thought it was pretty useful, but I am sure it won't fit everyone's needs.

Hi, so how would one set it that the Light is permanently on of off .