User-friendly, high-contrast OLED screen provides performance and treatment data. 8,000 treatment impact-resistant quartz UV bulb saves 16,000 plastic water bottles from the landfill. Treats 1 L of water in just 90 seconds, .5 L in just 48 seconds. USB-rechargeable via computer, wall outlet or portable solar panel (USB cord included). Weight 4.8 oz.