I bought one on eBay some years ago.

NOT solar powered, but it claimed it could run off a PP3 9V battery.... A bit optimistic as the camera/transmitter consumed a lot of power.

But if you had a large enough solar cell array and only used the camera periodically it would be okay I guess...

John

You can use a off the shelf camera , but you will need to use a separate solar power system w/ a battery. That will give you 24/7 capabilities

I hope this helps, we manufacture the solar panels to be used on those and other systems...........

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We have no problem supplying any size of solar panels
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Here's one, it's discontinued but maybe you can track one down.

Here's another but it sounds expensive,

& here's a guide to solar security cameras.

I've had very good experience with EMZA Visual Sense products. The WiseEye model will work in any weather, wired or WiFi. It's 12V with a solar option. The daylight model will work to 1 lux, and they also have an IR option for poorly lit venues.

It's been a couple of years, but I bought a 4-pack kit for US$3300.