Core One LED light strips
On my MK4S, I had this LED light bar setup: https://www.printables.com/model/493459-led-light-bar-prusa-mk4. With a little effort, I repurposed the two LED light bars into the Core One...
First, add some length to the wires between the two bars. Then, using some double sided tape, the light bars mount on the bevel inside the Core One's frame.
The trick is mounting the switch to the bottom xLCD mount. I used the R2 version and made a small pocket to mount a switch. Switch can be sourced from Amazon - https://www.amazon.com/dp/B07GNHMY3B?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_6.
The LED's are powered by this power supply: https://www.amazon.com/dp/B078RY7BPL?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_3&th=1
The remix for the base is here: https://www.printables.com/model/1384680-core-one-xlcd-display-mount-r2-with-switch-for-led
I'm pretty pleased with the result and it really makes things bright for using a camera.