This Laser Feature a 532Nm Wave lenght That Is Bright Enough To Let You See The Dot During The Day And Also The Beam at Night. Because It Is About 50 times Brighter Than Traditional Red Laser Sights, You Have a Much Farther Range Of Use as Well as Being Much easier To See With The Naked Eye. Visible Range Of 200 yards In Daylight And Over 1 Mile at Night Under Optimum condItions.