This mount is used in conjunction with the A1 Top Mount Accessories Rev 2 by Jeff Smith. It allows a round 60mm LED to be used as an overhead light. The light has a built-in on/off switch in line with the cable. This setup should also fit the round LED included in the Bambu Lab LED Lamp Kit 001 (https://us.store.bambulab.com/products/led-lamp-kit-001?_pos=1&_sid=d86e0da91&_ss=r) but I did not have one in my possession to confirm.

For my setup, I used the 45-degree mount in the accessory kit and it keeps the LED clear of all PTFE tubes and the printhead. In the photos, I have the A1’s built-in LED turned off and the overhead LED on; it provides excellent light coverage.

Tested in Overture PLA Professional, but any PLA should work. The fit is tight in order to keep the LED secure, so it will require some force to snap into place. I beveled the edge to make it easier to insert the LED, but you can wipe a thin film of lube on the inside of the bracket if you encounter difficulties inserting the LED. 

60mm Round LED used (white light version is recommended for brightest lighting): https://www.aliexpress.us/item/3256805556934763.html?spm=a2g0o.order_list.order_list_main.29.63361802nm1ezB&gatewayAdapt=glo2usa

***Do not use the LED model listed below (the version without the diffuser lens). This version is 1mm larger in diameter and will not fit inside the housing without scaling up the design***