I read about this article about solar lamp. Obviously I can bought the whole thing online by spending $30 something but I want to make it by myself.
I hope this is the right place to look for. I am not sure if this belong to another SE. I have no electrical experience except the little thing I learn from high school. With a proper instruction, I think I can build it by myself from the scratch.
I googled around for "DIY solar lamp" but I cannot find any page which am not using already made $1 solar road lamp, however, I want to bought the things including solar cell, diode, etc and assemble them by myself.
I found this article which seems to be teaching it but it is lacking the graph.
I've attached an schematic below which I found on the internet. It is about a solar lamp with a solar cell of size 25x18x5 cm, which I don't think could fit in a jar. I place it here for a reference. It is from Taiwan so it is Chinese. I've made a translation for you.
What I need is a instruction to build a solar lamp from scratch and it could fit in a small jar. Do you have any idea?