The Waterproof Lightstick from SunJack comes with an integrated 5200mAh power bank that can charge up to 3 smartphones. Ultrabright 350 lumens is equivalent to a 40 Watt incandescent bulb and provides abundant light for any task. Great for camping, the toolshed, or as an emergency light source, the SunJack LightStick is rugged, portable, and powerful. Three lighting modes plus strobe, the SunJack LightStick is waterproof to 6 feet and comes with a one year warranty.