A low-cost solution to an expensive battery problem. The combination of parallel and series wiring delivers a compact electrical source that is both powerful and long lasting. Design by Mechaprint Prototyping
Multiple packs of this design were used to power firing boxes in the 2018 Royal Forest Firework show. Rear more about the show and the people behind it here: https://www.gofundme.com/royalforest4th
Here are some videos of past Royal Forest Firework Shows: