Quickly and easily convert river or lake water into safe drinking water while out on your next outdoor adventure. SteriPEN Ultra uses the power of UV light to destroy over 99.9% of microorganisms in water that can make you sick. It's as easy as 1, 2, 3. Just push the button, submerge the lamp in the water, stir until you see the smile, then swig. No more boiling water. No waiting for tablets to dissolve. And no pumping of any sort. Purifying water while on the go has never been so easy! With SteriPEN Ultra, you also get a variety of recharging choices. Use the included USB cable to power it up from an electrical outlet, your computer's USB port, or use a portable solar panel with a built-in USB port (sold separately). Qaulifies for SteriPEN Premium Lamp Replacement This model qualifies for the SteriPEN Premium Lamp Life Pledge. The Lamp in your model provides up to 8,000 treatments. When you register your Premium SteriPEN, you'll get an unlimited number of water treatments beyond the original lamp. Just register your SteriPEN, and when you reach 8,000 treatments, SteriPEN will replace your Ultra UV Purifier. That extends the life of your SteriPEN, and greatly reduces your cost per liter of water treatment. To enroll, register your SteriPEN at www.steripen.com/register. Recharges with included USB cable Low-power indicator lets you know when battery needs recharging Ultraviolet light rays destroy 99.99% of protozoa, bacteria, and viruses To purify water, just press button and gently stir in water Purifies 32 fl. oz. in just 90 seconds Fits perfectly into store-bought bottles of water Small size also fits cups, mugs, and canteens Turns itself off once UV treatment is complete Rubberized inset grips for secure handling in wet conditions Indicator symbols include treatment complete, low-power indicator, and UV bulb life status Includes USB cable, protective neoprene carry case and instruction manuals Order today!