ohaya
(ohaya)
2
Edit: Googling, I found a similar thread/question I had posted awhile ago (Which lights take a 20mm emitter board?). I must have too short a memory. Of those, the D5 (http://www.cnqualitygoods.com/goods.php?id=1339) looks like it comes closest, but I don’t think that’d work with a TIR.