This Spectrum Series™ LED XL50®, features a green beam. Green is great for outdoors as animals, insects and fish typically do not react to seeing a green led light source. Visually your eye responds better to green and blue color lighting. Protects your night vision and avoids eye strain typically associated with using white LED’s for an extended period of time. Great rescue light for both the professional rescuer as well as the average consumer, green LED flashlights can be seen up to a mile away.