I'm looking for a small light that has the 2 tab mounting system like a GoPro camera housing.

I want to mount it to a 3 tab GoPro mount like this one so it is hidden neatly under my Garmin.

I Googled a bit but only found one fairly expensive light (over $100) that seemed to have that kind of mount.
Anybody know of anything cheap and fairly compact OR a universal 2 tab adapter?