After doing some additional searching, I found these:
https://www.superbrightleds.com/chec...46ddc923a8ef3d
They are automotive brake/turn lights, and a socket for easy mounting, and have a narrow beam angle.
Searching for 12v flashlight, worklight, etc yields primarily rechargeable lights, which wouldn't necessarily operate at their charging voltage.
Thanks for the correction on R50.
I'm still curious what other solutions other teams use, if they are willing to share. Knowing what you need is typically much easier than finding what you need.