The Klarus TR10NS is an excellent non-strobe remote pressure switch to be used with specific Klarus flashlights: FH10, XT10, XT11, XT12, XT15, XT30, XT20. It features two switches, one that activates the momentary-on and one that activates the constant-on. The momentary-on button also functions as the off switch. To activate the constant-on switch simply hold down the switch for about 2 seconds and it will turn on to the High brightness level. You can then press the switch to cycle through th...