On Feb 12, 11:40*pm, Andy Dingley wrote:
On Feb 12, 6:31*pm, M.Joshi wrote:

The panel I am thinking of purchasing off eBay has a protection diode
built-in.

I bought one of Maplins - it cost me a car battery. *The supposed
diode was more of a didn't.


The PV cells are themselves diodes.