Yueling@ Super Bright Waterproof 3 x XM-L L2 Diving Flashlight 3500 Lumen Lights for Underwater Diving, Scuba Led Flashlight Flash Light (Black)

Garbage, did not work all, don't waste your money

I think this flashlight may be not a true Ultrafire Brand. There Is no brand or trademark stamp on the flashlight. I made a mistake and did buy 3 of the exact same flashlight with no brand markings on It and other reviews said" they go through batteries real fast". What I found out about putting batteries In the 3 I bought from another seller,Is that even though the dimmer slider switch Is all the way off ,there is still some power usage/leakage that drains the batteries after sitting for a week or two. What I have to do with my 3 Is loosen the rear tail cap at least one full turn to compleatly turn It off,then the batteries will last months If not used. I love the dimmer but Its a bad design. Im now looking for a replacement Tail Cap with a switch built Into It. Maybe by now someone may of fixed this problem with dimming flashlights.