I do have a Problem with a 3x cree U2.
build up a cinister torch ,canister is from Hector , driver is a shark driver with 3a,
and a round platin with 3x cree u2 , very first time switch on gives light for 2 sec. and goes off ,, ?????? agian and sooooo on.
and now work only 2 out of 3 leds.
what is wrong????
anybody any ideas