AER-05 remote switch is specialized in tactical flashlights with APF circuits. It has a dual tactical switch panel that allows easy and fast operation of momentary-on or constant-on illumination. Its high-elastic PU cable with a length of 9in/23cm fits most gun barrels. It is compatible with APF flashlights powered by 21700 batteries, such as Fenix TK16 V2.0, TK28 TAC, PD36 TAC, etc.