Works great. A+++ seller! ITEM ARRIVED WAY AHEAD!!!!
Takes AAA battery so it’s a GOOD light! LOVE IT!
YOU CAN USE BLACKLIGHTS LIKE THIS TO CHECK IF DIAMONDS ARE REAL!
IF IT GLOWS ITS NOT DIAMOND EVEN IF TESTER SAYS SO!
(Cuz moissanite - man made diamond -tests thermally as diamond but not optically