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I'll second this. Don't let his high school looks, voice (and sometimes demeanor) fool you. He knows the subject matter well.

That's very little capacity. mAh = milliamp-hours...or thousandths of an amp-hour. So 3200mAh = 3.2 amp-hours. At 24 volts that's 76.8 watt-hours of storage. But you can't discharge an ordinary lead-acid battery like that below 50% of a full charge without reducing the useful life of that...

So those are lead-acid batteries that aren't sealed, which means that you're going to have to monitor and occasionally top off the water levels of 12 batteries for every string of those that you use....not to mention the other issues that allenw and ascholten already mentioned.

Not without knowing the voltage. But we can do the math by plugging in the more common voltages for solar systems, which are 12V, 24V and 48V. (Other voltages are used as well, but these are the more common ones.) Wh = V x Ah Where... Wh = kilowatt hours V = voltage Ah = amd hours...

What are the wattage ratings for the lamps and heaters, and what is the longest period of time you expect to run them in a single day?

What type(s) of batteries are you talking about? Lithium-ion? Lead-acid? If LA, are they AGM/sealed, or will they need to have water added to the periodically?

BTW, there are some simple and inexpensive all-in-one solar powered LED + motion sensor units that give some fairly decent light. At least, more than enough to tell your cat from a racoon. I've had one mounted on an awning in my backyard for nearly a year now and it works great. The solar...

Think about it this way: The solar panels produce an electrical current, by converting solar energy into electrical current (hence their name) only while the sun is shining. If that electrical energy is not used immediately as it is being generated then it must either be stored for later use...

Well, yes...the LEDs themselves are DC (though there are AC-powered LEDs for some specialized uses), but the form in which they're sold to consumers for these sorts of lighting applications (LED bulbs, LED fixtures for household use, etc) are more often than not AC-powered devices that contain...

Yes, which is why I worded it the way I did. They have to determine for themselves how much illumination is needed for their use case.

I think a beginner's tutorial of any real usefulness (and that isn't grossly oversimplified) is beyond the scope of a discussion forum thread...unless the OP wants to devote the time and effort to such a considerable task. Perhaps in this case the better approach is to just define the...

That's not possible unless you're only using the lights during the daytime. The solar panels only produce electricity when the sun is shining, so that energy has to be stored somewhere if you're going to use it later to power lights (or anything else) when there's not sunlight to produce a...

Ah, so it's inside? I don't mean fully-enclosed, but covered overhead so as to preclude the use of off-the-shelf solar LEDs with integrated motion sensors. It sounds like you only need the area illuminated for short periods at a time rather than all night, so it sounds like you'd need just 2...

OK, so how big is the area you're wanting to illuminate?

How many bulbs of what wattage (either actual watts used or their incandescent equivalent) are you needing to adequately light the area in question?