Probably the easiest way to facilitate this would be to buy, or steal, one of those solar yard lights. A picture of one of these artifacts is attached. Regarding stealing them, that's the crazy part. Often these things are just stuck in the dirt, in somebody's front yard, not difficult to remove. They're easy to find in the dark too! ;-) Anyway, I'm just trying to make things easy for you. Your spec did not mention how powerful of a flashlight you wanted, how long the light should last, or the method for recharging, etc.
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Thank you for reply. working hours: 6-8 and method for recharging is through power. when the Ac power off / shutdown, it automatically switch on.
Have you forgotten already asking this question?https://www.instructables.com/answers/how-to-make-rechargeable-led-light-when-power-fail/ L
no, i want the procedure to make led light lamp in place of energy saver like emergency light
People were giving you answers there, comment back to them, explain what you want in more detail. L