Reddit mentions of TMEZON 12 Volt 2A Power Adapter Supply AC to DC 2.1mm X 5.5mm Plug 12v 2 Amp Power Supply Wall Plug Extra Long 8 Foot Cord

For less than $50 I am now able to fill my outdoor graveyard with 8 colorful spot lights.

Amazon:
https://www.amazon.com/gp/product/B072BXB2Y8/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 . (DC Connectors)
https://www.amazon.com/gp/product/B00Q2E5IXW/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 . (12V Adapter)
https://www.amazon.com/gp/product/B07PVVL2S6/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 . (120 LED's)
https://www.amazon.com/gp/product/B07DDG7J9K/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 . (100ft 18-Gauge Wire)

You need one of [these] (https://www.amazon.com/gp/product/B00KVQPF94/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1) and one of these.

Doesn't have to be expensive. I have had one of these amps for a few months and it works great, plugged into the TV's headphone jack. You will need a 12-volt power adapter for it, but almost everybody has one of these laying around the house.

I personally wouldn't use it. Look for a simple regulated 12V power supply. Something like this should be adequate depending on the amp requirements of the scope.

https://www.amazon.com/gp/aw/d/B00Q2E5IXW?psc=1&ref=yo_pop_mb_pd

I grabbed both the wide angle and the long range versions of this, Love them. I look at my camera monitors then out the window on a moonless night and it is somewhat freaky to see pitch black out the window but see a black and white daylight brightness level thru the cameras.

Narrow / Long range version
Wide angle / short range version
Power packs

Here you go.

For the most part, monitors will either use an AC power cable like this or a DC power cable like this. There's other plug shapes for both AC and DC power, but for the most part, if there's a big block somewhere on the power cable it's DC, otherwise it's AC

If it's taking DC power, the block should have information written on it about what voltage it's outputting (likely, this will be 5v or 12v). In this case, you can just cut off the power block from the plug, and solder the wires to a molex or sata cable

If it's taking AC power, it's slightly more difficult. Generally, there will be an extra PSU board inside the monitor to convert power to DC power, which won't be necessary in the final build. Often, there will be wires between the PSU and control board that are used for other functions like controlling the backlight which aren't needed, and ultimately only a few wires should actually be required to power everything. These wires are normally labeled on the control board's PCB, but they're often hard to read since most people will never need to look at them; it's definitely a good idea to go slowly and prod at the board with a multi-meter

Immoddernation did a tutorial which covers the AC power option a little bit, in his video he narrowed it down to 5v and ground wires to power the control board, which he soldered to a molex connector. On my build, I needed ground, 3.3v, and 5v, so I bought a sata power extension and soldered the wires to that, since sata supports 3.3v output. If you're comfortable making your own PSU cables from scratch, you could alternately make a connector that plugs straight into the PSU, but imo sata and molex are easier to disconnect quickly, and since they're standard plugs they'll work with any PSU once they're made

I tried powering the motor via a breadboard barrel jack instead of the arduino, but got the same results. The motor whined, the driver started to heat up and smell. All-in-all not expected behavior. This is my first time with steppers and such, so I'm sure I did something wrong, I just don't know where to start with troubleshooting.

Here are the items that I am using:
Arduino Uno
Big Easy Driver
[12V Adapter] (https://www.amazon.com/gp/product/B00Q2E5IXW/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1)
Stepper Motor

Any advice or help would be greatly appreciated!

I use a similar one with an extension because I couldn't find a long enough one when I purchased. I think I may also be using one of these: https://smile.amazon.com/dp/B00Q2E5IXW/ref=psdc_10967101_t2_B01M0XJH1E

You also need a power supply for the amplifier. Looks like this one would work for the amp suggested: https://www.amazon.com/TMEZON-Power-Adapter-Supply-2-1mm/dp/B00Q2E5IXW/

Poke a few holes in the back, mount a 200mm fan on one side as an intake and on the other side as an exhaust, you'll have a sufficient number of air changes per hour as to not have thermal throttling issues.

Use a 12V wall-wart, split open the DC output cable, splice it together with a couple fan connectors, and bang you've got a nice always-on fan power supply.

https://www.amazon.com/TMEZON-Power-Adapter-2-1mm-Supply/dp/B00Q2E5IXW/ref=sr_1_3?s=photo&ie=UTF8&qid=1473678849&sr=1-3&keywords=12v+power+supply+2a