SWITCH RAIL he low-profile Switch Rail Weaponlight from Princeton Tec provides the light that operators need for navigation, stealth structure searches, and breaching operations. Fitted with infrared and white LEDs, the 10-lumen light fits on a Picatinny rail and is controlled by a simple push-button switch. Runtime on two 2016 batteries is 36 hours. The Switch rail is rated IPX7 waterproof, submersible to 3.3', for performance under less-than-ideal conditions. One-button access to infrared and white LEDs 10-Lumen output for navigation, signature reduction, stealth structure search, and breaching operations Mounts on Picatinny rail Comes with ARC, MOLLE, and helmet mounting adapters IPX7 waterproof and submersible Uses two 2016 batteries 22g Burn time 24hours