Review on 🔌 NGNWOB 3500W Power Inverter for RV Truck & Car, Solar Converter DC12V to AC 110V, Intelligent LCD Display, 4AC Outlets, 2USB Ports - Ideal for Semi Truck, RV, Off-Grid Solar Systems by Tom Reasons

Robust mid-size inverter that actually puts out 1700 watts. I chose it to run small electrical appliances at the campsite and like other inexpensive inverters it outputs a modified sine wave, not a pure sine wave. The modified (stepped) wave is not expected to work with heavy inductive loads such as motors or sensitive electronics that require a smooth AC waveform. The inverter was producing 118 VAC with no load. The frequency was heavily distorted and while not as bad as some smaller inverters, it was still only around 40-50Hz (should normally be 60Hz) depending on the torque, so the step function is probably pretty rough, although I like it can. I can't tell without an oscilloscope. I've tried a radiant heater (which is a purely resistive load and so the AC waveform is fairly inconsequential) and a heater rated at 1500 watts. I got 1605 watts from this inverter while running this heater and it worked flawlessly. Of note is the fact that while they come with fairly thick cables, they do get quite hot after just a minute of converting so much power. So you should buy thicker cables if you plan to actually use them for their rated capacity for longer than a minute or two at a time. A final note for people who want to use it for hiking: to use something like this you need a battery with a very high current output. A lead-acid car battery is not enough to fully power this inverter. You could probably run it with the vehicle when the engine is revving, or you would need a large battery pack to actually power it enough to get you 1700 watts out.