On how to connect a solar panel to a battery and then to a lightbulb,the project is offgrid..
But be aware that building your own panels will cost more than simply buying ready-made ones. This was not always true, but it is today. As you can see, this kind of information is widely available for free. Beware of scam sites that have a slick pitch making unrealistic promises, trying to sell you an e-book or video of the same stuff.
Hi Igor, this is a very simplified version of the system I'm implementing in my shed. I used a guide found on an Answers! member's website, you may find what you're looking for there. Check out the sources section.
This is my system: Solar Panelcharge controllerBatteryInverterLights. Keep positive to positive, negative to negative. The solar panel has a cable that has a polarised two pin disconnect (more or less takes care of itself), as does the harness that connects to the battery, a couple of extension cords, and the charge controller itself. The harness in its current install is fixed to the inverter DC in studs, which has a cable that is fixed to the battery. The harness also had a fuse holder and 0A fuse. Except the battery, panel, and lights themselves, all the works are in a mostly sealed box with only panel, battery, and AC cables leaving. The mains voltage lights (about 3x23W CFL) are connected to a power inlet, which is linked to the inverter power outlet with a short cord. The lights are controlled by turning the inverter on or off with its control switch. The inverter is a 400W cheapo, battery 36Ah AGM, panel 20W, controller basic 7A.
