The output of the green beam is 5mW the class is 3R[Three-in-One Functionality] Provides an impressive maximum brightness of 1300 lumens for excellent illumination. Arkfeld pro combines white light UV and green beam in a single flashlight offering versatility for a wide range of applications[Higher UV Intensity] High-power output of up to 900mW at a 365nm wavelength offering a purer and more professional UV light experience compared to standard 395nm UV lights[Battery Level Indicator] Includes a five-level battery indicator for easy monitoring of battery status ensuring you are aware of the available power[Convenient to Operate] Easily switch between the three lighting modes using the intuitive circular selector allowing for seamless adjustments to suit different lighting needs