Review on 🔌 VOLTCUBE 400W Power Inverter 12V DC to 110V AC Converter - Dual USB Car Adapter with 4.8A, 2 Independent AC Outlets (Blue) by Jason Ballard

Briefly tested a 400W inverter. I powered up a multi-speed 2.1a fan on either side of 110v and hooked up USB devices to both ports to make sure everything was working before tossing it in the camping/outdoor tub in the garage. The fan turns on immediately after applying power with no load. The fan is very quiet. I have another inverter where the fan turns on and off based on the thermostat. I haven't let it run long enough and heated up enough to tell if the fan has dual modes or if it's just always in super-quiet stealth mode. A quiet fan is good, but a fan that's always on uses up battery power all the time. When your battery is your running car, it doesn't matter if it's a battery in a box alone or with a solar panel, it matters a little more. There's a power button on the front that seems to turn off all DC power and the fan, so that's probably enough for everyone as long as they don't forget to use it! This fan is really quiet! It is well packaged but fairly dense, so there may be a heating issue depending on the application and environment. The sleek, sexy extruded aluminum case can get hot depending on how long you use it? 400W and 2 USB ports will do most reasonable camping needs, so it replaces my older, larger one. I wouldn't run an electric chainsaw with it, but it will charge a small air pump, lots of lights, CPAP or nebulizers, almost any portable electronic device. Remember to use bigger things to use the alligator clips and not the cigarette lighter plug in your car. We only ran 110VAC CPAP (no heater, no humidifier) through the cigarette lighter plug during testing, but according to the manual, it was a 90W load. A power outlet in a car is typically rated 10-15 amps at 12VDC. Volts x Amps = Watts. So if the car battery is 12 volts (it is) then we multiply by 15 amps (the size of most car cigarette lighter fuses, using 10 amps would be safer) which gives us 180 watts, 120 watts if we 10 use amplifiers. Anything that needs more juice we have to use alligator clips directly on the battery. How do I know it's tight? I know it's tightly packed because when I tried to connect the alligator clip wires to inverter 1 of 4, the small washers that were included in the clips fell into the fan holes and disappeared inside the unit. It doesn't seem wise to float a flat washer in an electrical device that moves and pushes a lot and carries both high current and (modestly) high voltage. I spent a few minutes trying to shake the puck back out of the slot it fell into, but in the end I was forced to unscrew the end and push out the circuit board where all the components are stuffed. The washing machine came out right away and I was able to complete my 20-minute test time.