DieHard 80 watt (80 continuous watts) power inverter. Brand new. First quality in sealed, retail packaging. Sears product # 28-71490. Pocket size inverter. Perfect for travelling. Converts 12 volt DC power to 110 volt AC power. Use in cars, vans, SUVs, trucks, boats, and aeroplanes. Ideal for laptop computers, iPads, iPods, cell phones, radios, video games, MP3 players, portable CD players, etc. Built in USB power port. Overload protection. Includes vehicle and airline adapter. Greatly reduced risk of damage to your vehicles battery or electrical system compared to similar higher wattage devices.