The ND3-Bow Laser Illuminator uses advanced green laser technology to create true night vision and turns your scoped rifle into a night hunter. The patented Rotary Optical Collimator uses a system of 9 fully multi-coated lenses that allows full adjustment and control of beam diameter and intensity to focus light where you need it most. Rotating the collimator ring to minimum creates a bright micro beam of green laser light visible up to 3 miles. Rotating the collimator to more open settings provides plenty of illumination to light a trail at night or paint a target at up to 250 yards. Battery life allows you to handle any emergency with over 7 hours of continuous use (3 hours of continuous use at 0˚F).
Excellent source of illumination for Archery

If you are an outdoor enthusiast who spends most of your time in warmer climates, such as 40 degrees Fahrenheit or above, we recommend using the standard ND-3® or ND-5® series of products. However, if you are mostly spending your time in rough and cold weather conditions in temperatures 40˚ F and below and looking for a compact, light weight and reliable source of light, then look for the ND-3 Subzero™ line of products.

Green light is the most visible to the human eye and requires the least amount of eye adjustment at night. An eye that has adapted to daytime conditions generally has a maximum sensitivity around 555nm. Compared to the color red which optical spectrum is around 630 – 650nm our eye is closer to the Green region of the optical spectrum at 510 - 530nm.

Specifications
Length     6.75" L x 1.25" H (171.45mm x 31.75mm)
Construction     Precision Machined From High Tech Aluminum Alloy
Finish     Anodized Matte Black
Wavelength (Color)     532nm (green)
Range     3 miles
Power Supply     One lithium CR123A battery (included)
Battery Life     Up to 7 hrs, Up to 4 hrs at 0° F
Output Power     18 mW
Lens Diameter     26 mm
Weight     5.37 oz
FDA Safety Class     Class 2M
Water Resistant     Yes
Product Warranty     1 Year Warranty