SteriPEN is the world's leading manufacturer of ultraviolet, handheld water purifiers. SteriPEN purifiers quickly and easily make safe drinking water available for travel, outdoor recreation, and emergency situations at a fraction of the cost of bottled water. SteriPEN Freedoms’s ultraviolet (UV) lamp destroys over 99.9 percent of harmful microorganisms in water. UV purification works as the cells of microbes absorb ultraviolet energy emitted by the lamp so they can't reproduce to make you sick. Freedom Solar Bundle comes with everything you need to start your adventure – solar panel, AC adapters and water bottle. Easy-to-use: just remove Freedom’s lamp cover, place lamp in water and stir. In 48 seconds up to a half-liter of water is purified. Lamp automatically shuts off when treatment is complete. Includes water sensors safety feature so the UV light only turns on when safely below water surface. The UV lamp provides up to 8,000 one-liter treatments. When fully charged, device can be used approximately 40 times. Recharge with wall outlet, computer, or included solar panel – just like a cell phone. Makes travel more sustainable and affordable; keeps thousands of single use plastic water bottles out of the waste cycle. Comes with storage case, 2000 mAh storage battery/solar charger, micro-USB cable for charging via USB, international AC adapters, half liter water bottle, instructions and 3-year limited manufacturers warranty.