I have a six LED lanterns that I bought really cheap. They are similar to those old looking kerosene lanterns they advertise on tv which use LEDs, but in a less fancy plastic case. The lanterns are designed to use three AA batteries, thus 4.5 volts. I want to connect them to a 12V deep cycle battery which I have connected to a solar cell to charge the battery.
What is the easiest way to connect them to the battery and supply the correct voltage to the light? I was thinking of wiring three lights in series across the battery. That's actually needing 13.5 volts, but most auto type batteries actually charge to around 14V anyhow. Is it possible to do this, or wont the series method work on LED lighting? I do realize that I'd have to keep the switches rurned on on each light or none would work, so I'd have to have a single switch in the source wires.
What are my other options?