A compact solution for illuminating targets at night, the ND5 SubZero Mini Laser Illuminator lets you maintain your nightvision while illuminating objects out to 400 yds. Laser's green color is the most visible color to the human eye and requires the least amount of eye adjustment at night. Green laser light also intesely illuminates animal eyes, making them clearly visible at extended distances. Light's beam is easily adjusted with one hand. Rugged aluminum housing is O-ring-sealed to keep out water and dirt. The ND5 SubZero Mini Laser Illuminator is visible up to three miles away and runs up to 10 hours on one CR-123 battery (included). Tube: 1.3"dia. x 6.8"L.