Usage Chart: How Many Watts Do You Need?
Power Bright 1500: Furnace Fan Fan 50120 Cobra CPI480 Wagan Slim Line 500 Samlex SAM45012: Clock Radio 1050 Stereo 30100 Cell Phone Charger 10 Samlex SAM10012 Cobra MicroPort 150: Laptop Computer 2075 KISAE SW1204 Samlex PST30012 Wagan Pure Line 400: MacBook Pro 85 iPad / Tablet