Here is my light bar for the Ender 3.

I find that this is very useful as it brings a light right down to the print bed and mounts to the X gantry.

I used 24V LED light strips
https://www.amazon.com/gp/product/B00X5MDPRU/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=petersolomond-20&linkId=48726d8acf3bfb1bb0a5a7dc060d0e3b&language=en_US (affiliate link) for the Ender 3 Pro and took the leads right from the PSU V+/-.

I added a 2 amp fuse https://www.amazon.com/gp/product/B00X5MDPRU/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=petersolomond-20&linkId=48726d8acf3bfb1bb0a5a7dc060d0e3b&language=en_US (affiliate link) to the positive lead coming off the PSU and a switch to the same lead and mounted switch in my

you can use with this switch housing:https://www.thingiverse.com/thing:3315172

or

front box to be found here:
https://www.thingiverse.com/thing:3292867

you will need M4 T-nuts (affiliate links) : https://www.amazon.com/gp/product/B00X5MDPRU/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=petersolomond-20&linkId=48726d8acf3bfb1bb0a5a7dc060d0e3b&language=en_US

and M4 button cap screws - need about 8 mm long (affiliate links): https://www.amazon.com/gp/product/B00X5MDPRU/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=petersolomond-20&linkId=48726d8acf3bfb1bb0a5a7dc060d0e3b&language=en_US

https://youtu.be/uGz_VD3Hgv8

Let me know if you like this, and post your makes!