Nitecore RSW2 Strobe Ready Remote Pressure Switch for P10 P20 P20UV LED Flashlights with Lumen Tactical Battery Box Organizer Sampler Special "Strobe Ready" allows you access both strobe and steady mode remotely. Side button switch for constant on/off Three button pressure pad switch to ensure 100% reliability Elastic coiled cord for versatile mounting positions; Fits NiteCore: P10 P20 P20UV LED Flashlights Also include a Lumen Tactical battery organizer for your back up batteries.