Floodlight mounting assembly broken, need replacement

[Atwood]

 These two parts of the assembly have cracked and I have no way to mount the floodlight anymore. I can’t find replacement parts anywhere. Is there a non Arlo brand alternative? Arlo Pro 3 Floodlight Camera 

[StephenB]

Unfortunately, Arlo doesn't sell the mount separately, and I've never seen a third-party mount for it.

If the floodlight is still under warranty, you could try to get an RMA.