AimShot TX890-IR Infrared Wireless Flashlight Kit with QR Mount, Black Wireless rail mounted pressure switch light kit includes ir led light, picatinny rail mount, quick release mount, wireless rail mounted pressure switch, and 2 cr123a batteries Infrared CREE LED is not visible to the naked Eye - must have proper night vision gear to see this light 49 ounces, 6 long and 1 diameter rubber Covered body, bezel 18 diameter 1+ hour on high, fully adjustable brightness/dimming Control