BESTEK Advantage: America's #1 power inverter brand. Provides 150W continuous DC to AC power and 250W instantaneous power, featuring 1 AC outlet and 2 USB ports Patented Isolation Voltage Protection: This certified beast comes equipped with low pressure and high pressure isolation and built-in 40 amps fuse. Perfectly protect your pricious devices against overheating, under and over voltage charging, short circuiting, overloads, and overcharging. Fast Charging: Powerful 110V AC outlet for charging larger devices such as laptops and tablets, 2 USB ports (0-2.4A) for powering USB compatible devices, a good choice as requisite car accessories A must have for road trips: Ultra compact and lightweight, only 3.2 x 2.5 x 1.5 inches, 8 oz+. Space-saving and easy storage. 32 inch cord makes it easy for friends in the backseat to grab a charge for their devices 100% Satisfaction: 18-Months Warranty, ETL certification. Durable metal housing provides advanced protection from drops and bumps. Integrated silent cooling fan helps reduce heat and prevents shortages