Larger model - https://www.printables.com/model/511788-muzata-u108-led-stand

Bar model - https://www.printables.com/model/517847-muzata-u108-led-bar

This is the base for a LED strip light that you can place anywhere with a simple 5 volt charger and some simple wiring.  

I cut one of the 3 foot (1 meter) sections in half of the Muzata channel for each stand.

The two holes on the back of the stand are for 1) plugging in the micro USB cord to the board (BOTTOM)  2) running cables out to another LED or using different power supply (TOP)

FYI

There are several Youtube videos on setting up LEDs with the ESP32 boards

The cost to do one is approximately $15

Steps

1. Load WLED onto your ESP32 board - https://install.wled.me/
    
2. Settings - Set the amount of LEDs on your strip, make sure GPIO is correct, adjust your power supply mA. 
    
3. Attach 3 wires to the LED strip (power, ground, data) 
    
4. Slide the wires through hole in the base
    
5. Attach wires to the ESP32 (data=D4, ground=GND and power=VIN)
    
6. Plug in your micro USB 5V power supply and run WLED

Model Creation

I used OnShape.com to create this model and you can download any file type from here or copy it and use it with a free OnShape account. https://cad.onshape.com/documents/a0f589c2c776bd924c75869d/w/dc19edb5624b3d1d8f45f3de/e/83c56456f8a37f238f900508?renderMode=0&uiState=64960449ff5d430e1c3ddc9d

Parts

Here are the parts I used but you could use different LEDs if you want.  The stand is specifically made for the Muzata Spotless Channel though.

Muzata 6-pack Spotless Aluminum Channel ($50) - Muzata 6-Pack 3.3ft/1Meter 17x20mm U Shape Spotless LED Aluminum Channel System with 60° Curved Plexiglass Milky White Cover, End Caps and Mounting Clips Track Profile for Strip Light Installations, Diffuser U108 1M WW,LN1: Amazon.com: Tools & Home Improvement

ESP32 2-pack ($12) - Amazon.com: MELIFE 2 Pack for ESP32 ESP-32S Unassembled Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with ESP32s Antenna RF AMP Filter AP STA. : Electronics

BTF LED Strips ($32 for 16') - Amazon.com: BTF-LIGHTING WS2812B RGB 5050SMD Individual Addressable 16.4FT 60Pixels/m 300Pixels Flexible White PCB Full Color LED Pixel Strip Dream Color IP30 Non-Waterproof Making LED Screen LED Wall Only DC5V : Tools & Home Improvement

.3MF file

I included the project file where I added modifiers for making the cover 100% infill and added supports to the cover ledge and the center hole.  This was printed on a Prusa Mini+

I also included one named “with center cutout”.  I recommend this one because it doesn't need supports in the center hole, only the bottom edges.  After you print, you can simply use a razor to cutout the center hole.  It is only .15 thickness.

I printed at .15 layer height so that the top of the base looks good.  I put supports at the bottom edge where the cap sits and in the center.
The cap should be printed in 100% infill.