It is a retail light, the High CRI version.
I tried all the things you all suggested. I even started by using eneloops then 14500s. The primary 123s and 16340s both work. Jason said it worked for him all day before he sent it to me. The first time I had the issue I tightened the screw in the head but it was only a temporary fix.
-Alex



Reply With Quote

Move Through The Light .... With Caution