Streamlight ProTac Rail Mount 1L-X USB 850 Lumens White LED Weapon Light

The Streamlight ProTac Rail Mount 1L-X USB is a compact, rail-mounted weapon light that delivers 850 lumens of intense white LED output, a 346-meter beam reach, and 30,000 candela of peak intensity. Designed for mounting to standard accessory rails on long guns and other rail-equipped firearms, it provides reliable illumination for home defense, duty, and tactical use.

Built around Streamlight's multifuel design, the ProTac Rail Mount 1L-X USB runs on either a single CR123A lithium battery or the included SL-B9 rechargeable battery pack. The integrated USB charging port allows the SL-B9 to be recharged using the included cable. A long-life white LED is rated for 50,000 hours of runtime, and the rugged housing carries an IPX7 waterproof rating, sealed against immersion to 1 meter for 30 minutes.

The low-profile design measures just 4.64" long, 1.37" wide, and 1.72" tall. Weight comes in at 5.12 oz with a CR123A battery or 5.22 oz with the SL-B9 pack. This package includes the light, one SL-B9 rechargeable battery, and a USB charging cable, ready to mount and run.