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I made these up at the weekend out of scrap timber. Daughter wants to do some filming for a school project at night. Might try some on strips of cut down pvc pipe for tent lights.
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I just use these
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As long as you don't proceed to try and blow them out.

Your hunting mates don't look at you sideways in the tent?

I made up a lead with spade connectors on one end and a lighter socket on the other so I can still use stuff in the car.

I'd also look at LED strip lighting. A lot more rugged than flouro and more energy efficient. Can easily hook up a cheap $3 controller to vary output too.

You will struggle with a charger like that.