The StreamLight ProTac® Rail Mount 1 is a fixed-mount, dual fuel long gun light with a light output of 350 lumens (with CR123A battery power). It is machined from 6000 Series aircraft aluminum with anodized finish. The impact resistant Borofloat® glass lens is high temperature, shock mounted and AR coated. The light source offers C4® LED technology and is impervious to shock with a 50,000 hour lifetime. A TIR optic produces a concentrated beam with optimum peripheral illumination. It can be powered with either (supplied) CR123A or AA Alkaline batteries.
Features include:

• Remote pressure switch with momentary and “constant on” operation
• Integrated rail clamp attaches to MIL-STD-1913 rails offering easy attach & secure mounting
• TEN-TAP® Programming – choice of three operating modes: High/strobe / High Only /Low/High
• Operating temperature: -40°F to +120°F
• IPX7 waterproof to 1 meter for 30 minutes (with standard button switch)
• IPX4 water-resistant (with remote pressure switch)
• Includes remote pressure switch, push-button tailcap switch, remote retaining clips,double-sided tape and zip ties
• Run Time: High: CR123A battery – 1.75 hours / AA Alkaline Battery – 4.5 hours. Low settings offer much longer run times.
• Length: 4.25″ / Weight: 4.3 oz.