Viridian Universal Mount Red Laser Sight w/ Tactical Light (160/190 Lumens) featuring ECR Class 3R Laser Product (Does not exceed Class IIIA emission limits),  5mW power output Construction - 6061 Aircraft Grade aluminum Laser Intensity - 5mW peak / 532nm Optimum wavelength Activation - Automatic activation w/ ECR and User-defined operating modes Laser Range - Targeting up to 100 yards daylight, 2 miles at night