About a solar charger...?
i am making a solar usb charger as a weekend project. i am using 4 solar panels out of a solar powered garden light when i open the solar panel i noticed there are two wires one was green and the other was red i am a bit confused because there are normally one black and one red wire so can you tell me which wire is which. for example is the green wire negative and the red wire positive or is it the other way around
thanks please get back to me a soon as possible
the red one is the positive& the green wire is the negative.
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