This thing is a 200mm wide LED light bar for the Ender 3 that uses a 24V LED strip and a 24V toggle switch connected to the 24V power supply. I did not have a photo at the time of submitting this thing as I was redesigning the mount and don't have the thing installed at the moment.

Note: I have noticed much heat coming from the LED's so I designed this thing to accommodate heat sinks to help dissipate the heat generated by the LED's.

I splurged on the toggle switch because I liked the look of it however a cheaper alternative is probably possible as long as it can handle the electrical load. I used two strips of 5mm wide adhesive thermal tape for the 10mm wide LED strip and heat-sinks for adherence as I find that the adhesive that comes on the LED strip is not very good and I already had this thermal tape on hand.

There is some electrical wiring and soldering involved so please proceed at your own discretion, ability and risk; I take no responsibility. Incorrect or inadequate wiring could cause a hazard so please be diligent and careful. I am using a Mean Well 350-24 power supply with this design.

Some of the parts are small and delicate so please know that you may need to construct this with a bit of finesse and patience. The sequence of assembly can be changed to whatever works for you.

The following printed parts are required:
2 each - Thing1
1 each - Thing2
1 each - Thing3
1 each - Thing4

The following purchased items are required (I used blue LED, white would be better):

1 each - 5mm x 20M Double Side Adhesive Thermal Conductive Tape For Heatsink
https://www.amazon.ca/gp/product/B06XRXVGZN/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

1 each - 20m/65.6ft 20awg Extension,Cable Wire Cord for Led Strips Single Colour 3528 5050,led extension cable,led cable ，2 Pin Red/Black Hookup Wire
https://www.amazon.ca/gp/product/B0186647EE/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1

8 each - 11 x 11 x 5mm Mini Aluminum Heatsink
https://www.amazon.ca/gp/product/B07M6YHP1Q/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

1 each - MW LED 2 Pin LED Strip Light Connector
https://www.amazon.ca/gp/product/B078SG5M62/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

1 each - DC24V Blue Flexible Waterproof LED Strip Lights (200mm required)
https://www.amazon.ca/gp/product/B01CSBS9WE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

1 each - Toggle Switch/Rocker Switch DC12V 40A/24V 20A ON-Off
https://www.amazon.com/gp/product/B01LXSAJ02/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

1 each - 3mm socket head screw
1 each - M3 T-Nut
2 each - 2mm socket head screw
2 each - 2mm nut
2 each - female spade electrical connector (for the switch connection)
2 each - ring electrical connector (for the power supply connection)
1 each - heat shrink for the LED end

The following tools were used:
1 each - socket head wrench or Allen key for 2mm screw
1 each - socket head wrench or Allen key for 3mm screw
1 each - utility knife or other knife to cut LED strips
1 each - solder and soldering iron
1 each - wire cutter/crimper