so i go to a buch of festivals in the summer and i have this big canopy that i set up to cook under, stay out of the rain, etc. i want to hook up some ambience lighting, kind of like that rope lighting you can get to go under deck railing.
i want to make it out of leds, maybe a string of 20 or 25 of them and make it such that it will run for at least 24 hours of one set of rechargable batteries.
how would one begin such a project? i've never built anything similar.
alternativly, i'd buy it. but so far i've only found sets that run for 10 hours off 2 D batteries. I want more run time without having to change the batteries and, preferably, smaller batteries.