Making outdoor light fixtures from bargin materials?

We had a case of new-in-Box, outdoor light fixtures come up in a local auction. These retail for around $60 each and I got the case of just over 100 for $30. (They are for sale on the company website but Im not going to include a direct link) They look to be legit and in good shape but do not have the metal, screw-on caps they should come with.

This was a bit of a gamble, but I will need some outdoor lighting in our new place as well as something for nighttime lights if/when we get the greenhouse built. My hope is that I can use them to make my own light fixtures for both the outdoor spaces and greenhouse. It's been a chunk of years since Intro physics and studying wiring diagrams and the only other electrical stuff I've done is some very straight forward restoration of antique fixtures. ( replacing old sockets and wiring)

Are exterior-safe transformers something that is easy to order online? The manufacturer does sell them, but the prices are steeper than I like. Is there a way to wire them up into a fixture so it wouldn't need the transformer? Would a small solar battery as the power supply work? ( for the transformer prices, I could do that instead and still come out ahead, I think)

I feel pretty confident about the aesthetics of designing with them and think I can work around the missing caps but am not sure where to start with the power details.
Any suggestions are welcome or links to good sites with guides to wiring for dummies.

That was a great buy! Nicely done!

I've been digging around a bit. I'm not sure if your specific model is 12V AC only, but that's what is printed on the unit itself. The information sheet is of course vague about many critical details (boo!).

There is a similar AC / DC model on the manufacturer's website but the model number is not the same as that on your information sheet. Can you check the bulb itself for numbers / other information?

If it's AC only, you will need a transformer. How many bulbs would you want on a single circuit? That determines the wattage you need. I would allow roughly 1.5 watts per light because some voltage will be lost in the wires.

You could also risk frying one bulb on a car battery (engine off) to see if it lights up on DC. You may have to reverse the wires if it doesn't light up. That will tell you if you have the option to go with a straight solar setup. Edit: you may be able to cheat and test it with a regular 9V battery but no guarantees.

The manufacturer has email contact information, but you may get the runaround if your model is older and discontinued. But they should be able to confirm if it's 12V AC only, or 12V AC / DC. Make sure you give them the exact model number on your information sheet.

I just went in and double checked the listing on their website and it does say AC or DC in the full specs!
The model # is SS 13111 and they are the warm white colour. (It's the 3rd item in their "landscaping" section and shows is $30 each on that page but $60 when you go into the actual item)

As for how many per fixture, I was thinking 6-10, but can work with any number if that would make a difference in terms of it being easier to deal with the electric end of things.

That's interesting. I can only see the SS 21311 model.

You are correct, it's the 2 version, so slightly different. I'd missed that. It looks pretty much exactly the same except for a bit of texture to the top surface.
I'll look into doing a DC test on one of them.