Most solar lights are cheap garbage that exist just to put more microplastics into the environment as they degrade in short order. [Jeremy Cook] built his own solar light, however, and this one might just last a little longer. Most solar lights rely on the cheapest nickel-cadmium or nickel-metal hydride cells that are available on the market. [Jeremy] went a different route for his build, though, instead relying on a rather tasty supercapacitor to store energy. The solar panel collects light energy and turns it into electricity, charging the supercaps through a diode.