A compact black weapon-mounted task light that attaches to Picatinny Rail, for professional users who need simple momentary or constant white light. The Switch Rail is a black task light with two white LEDs, delivering 20 lumens in Flood High mode for 5h, with a 7h reserve. It is powered by 2 2016 Lithium Coin Cell batteries and is water resistant to IPX7. It attaches to Picatinny Rail and weapons. Key features Two modes — Two modes provide a momentary-on and a constant-on function, activated via its pressure pad. Glove-friendly button — The large, glove-friendly button is ideal for quick and simple activation and mode switching. Signature reduction — A low-lumen output supports signature reduction. Picatinny mounting — The adaptable mounting system attaches directly to Picatinny Rail for secure mounting. Typical applications Weapon-mounted task lighting for police and military units Momentary-on lighting for quick illumination in the field Technical specifications Light output 20 lumens / 5h run time / 7h reserve LEDs Switch Rail: W, W. Battery 2 2016 Lithium Coin Cell Ingress protection IPX7 Weight 22g Colour Black In the box 1 × Switch Rail — Black Model information Brand Princeton Tec Model Switch Rail — Black MPN SR-1-BK