The ProTac Rail Mount HL-X is a 1,000 lumen weapon-mounted light featuring a dedicated fixed-mount for Picatinny rails. It uses either a remote switch or a standard push-button tail switch, and can run on multiple battery sources. Other Features: Dual fuel - uses two CR123A lithium batteries (included); also accepts one Streamlight SL-B26(TM) protected Li-Ion USB rechargeable battery packEasy to use pressure switch comes with a button for on/off and a pressure switch for momentary activation.Integrated rail clamp attaches to MIL-STD-1913 railsEasy to attach, secure mountingDurable, anodized aluminum construction with impact-resistant tempered glass lensIPX7 rated with the Standard button switch installed; waterproof to 1 meter for 30 minutes.IPX4 rated with the Remote Pressure Switch installedOperating temperature: -40AdegF to +120AdegFAnti-roll headIncludes two CR123A lithium batteries, remote pressure switch, push-button tail switch, remote retaining clips, double-sided tape and zip tiesSolid State power regulation provides maximum light output throughout battery life#html-body [data-pb-style="62DF828A135A4"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF828A135B1"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}