With this cover (slides over the existing ender 3 cover with or without ;) the QR code sticker) you can add a simple LED to light up your printerbed.
I hooked up the USB extention cable to my Raspberry pi 2 running octoprint to power it.
Ender_3_z-axis_LED_cover_no_logo_v2.stl | 45.4KB | |
Ender_3_z-axis_LED_cover_v2.stl | 93.6KB |