Klarus TR10 Remote Pressure Switch for XT10, XT11, XT12, XT20, XT30, XTQ1, and XTQ2 FlashlightsThe TR10 Remote Pressure Switch allows you to attach a switch to your XT model Klarus flashlight and select either a constant beam or momentary illumination with one simple control. The switch features a super low standby mode (3μ A) that will not drain the battery when left in standby mode. The PWM signal circuit controlled switch allows for optimum efficiency and high quality resilient PU material lets the cord stretch without damaging it. This remote switch also makes a great bike light so you can ride at night safely!Features and Specifications: Compatible with Klarus XT10, XT11, XT12, XT15, XT20, XT30, XTQ1, and XTQ2 flashlights 100,000 clicks life cycle Signal controlled switch means no loss of efficiency Water-resistant to IPX-8 standards Super low standby mode (current 3uA) consumes almost zero battery life Dimensions: Length of curly wire: 9.05" (230 mm); Whole length of remote pressure switch: 1.81" (46 mm) Diameter of tailcap: 0.98" (25 mm); length of tailcap: 1.57" (40 mm)