Holosun IRIS 1 Single Function IR Laser Device Black. Additionally the IRIS 1 now features an on-board fire button for momentary or constant ON functions as well as an updated rear-facing selector switch to select modes and power for both the on-board fire button and the included remote activation button. IRIS 1 is available in Red Green or Infrared (IR) versions. Specifications for Holosun IRIS 1 Single Function IR Laser Device: Manufacturer: Holosun Beam Color: IR Color: Black Battery Type: Lithium Metal CR2 Battery Life: 10 hours Water Resistance Level: IPX8 Weight: 4.6 oz Package Contents: Holosun IRIS 1 Single Function IR Laser Device Holosun IRIS-IR1: IRIS 1 Single Function IR Laser Device Black