Henchman 21 from Venture brothers LightBox.
This is my favorite series of all time! Henchman 21 is a sure classic. Hope you like it as much as I do. Here are links to the hardware in the lightboxes. I also use shrink tubing after I solder the ends on the LED Modules. Usually put 4 LED Modules per lightbox.
I use these LEDs in my boxes:
Amazon.com: LED Modules for Sign 1.2W Constant Current 12V DC 6500K White for Advertising Light Box Letter (100pcs Pack) : Industrial & Scientific
With these ends:
Amazon.com : (Real 18AWG 43x2pcs Wires) 20pcs Female DC Power Pigtail Cable, 12V 5A DC Connectors for CCTV Security Camera and Lighting Power Adapter by MILAPEAK (2.1mm x 5.5mm, Ultra Thick) : Electronics
And this Power supply:
Amazon.com: R-Tech12V 1A Power Supply, Power Adapters, Lighting Low Voltage Transformers 5 Pack, UL-Listed, Power Cord with 5.5x2.1mm Tips, AC 100-240V to DC 12V 1A for LED Strip Light, Camera, Router, etc.