The J4000W has a large 1-gallon internal water reservoir and provides 2 hours of continuous steam before refilling. Quick 15 minute heat-up time. Go from PREHEAT mode to full steam power in just two minutes. Has a flexible 7.5′ hose for easy maneuverabilty on the job and an angled 9″ aluminum steam head concentrates steam into a targeted area for precise removal. Steam-resistant nitrile gloves included in each unit. 120 volt; alternate voltage available upon request.