In seconds, the Traveler germicidal UV light creates safe drinking water in Outdoor, Travel and Emergency situations * UV lamp provides 3,000 water treatments and a 1 year warranty. * The tapered end allows mating with narrow-mouth bottles - especially useful in coutries where even the bottled water is risky. * Batteries and carry case are not included * Weighs 5.7-Ounce with 4AA lithium batteries or 7.5-Ounce with NiMH batteries