500 Watt Power Inverter

Works well. Run at 460 watts (small space heater) for 5 hours. Fan runs but noise level is tolerable. Case gets warm after about 2 hours with MOSFET mounting points warm enough to be uncomfortable to touch for more than 5 seconds (so don’t do that LOL). The rest of the case is warm but reasonably so. For the price this 500 Watt PSW inverter works well. If your application is under 500 watts continuous this compact inverter should work fine. For a step above you might check out the Bestek 500 watt PSW inverter which easily handles 600 watts and stays lukewarm… but for $30 more. If you’re application is PSW under 400 WATTS watts continuous the Cantonape is a good choice. In my case this unit is for a 55 inch OLED TV, a surround sound bar, and a Roku. About 230 watts.

The fan kicks on every few minutes. It will not power a full load. The inverter turns off with the fault light on as it should with an overload. It will charge from the USB ports. The unit is defective does not run a anywhere to a 500W load. I have it connected to a 12v 600Ah battery bank of LiFePO4 batteries. Update: Sept 2025 The company's customer service rep reached out to me since the unit was not working as it should. To make a long story short the sent me a new unit to replace the one that didn't work right. Got the unit today and tested it. It works fine and even powers MUCH more than I was trying to do with the old one. So not everything is 100% all the time but the customer service rep was great and made it right. I am now giving this 5 stars for caring about the people and their products.

What do I like about this? I like that it connects just fine to the Renogy Rover Controller I have. (Keep your connections LOOSE until everything is connected while the inverter is on, then tighten everything up. You won't regret that.) The unit is solid 'enough' but it appears it could be damaged easily if you aren't careful unplugging whatever you plug into the outlets the first time. Yeah. The outlets are not exactly rock solid. What I did was plug in a heavy duty extension cord with six outlets. I DON'T use all of them at the same time. There's a small lamp, an older, low Wattage radio and a home computer by HP WITH a 32 inch TV for a monitor. I keep three solar panels connected to it to charge each day. I don't run the computer and monitor when I'm not using it, reboot upon need. It works just fine. Connected to this 12V 2000W Inverter by lvyuan are two 50Ah LiFePO4 batteries connected in parallel. Very simple. Turn everything off until needed, EXCEPT the Inverter's power switch and, for me everything is going fine. Again, I only gave four stars because you could break the outlets easily by carelessly plugging and unplugging appliances. It is close to flimsy to that end. Use your head and this should last a good long while. Monitor it regularly too, that's what I do to be on the safe side. It appears to be smooth sailing. Also to protect pets and children as was yourself if leaving this in the house and providing power to any given appliance as you would plugged into a wall socket, you would be wise to get a battery case to keep the battery inside of with the cables connected exiting/entering the battery/batteries from the controller. It's not for the timid or initiated perhaps, BUT if you are so inclined, the potential for you to see your energy bill plummet as mine has varies. Mine is a working model in progress and I would actually consider wagering that I possibly had the lowest energy bill in the state or among the lowest anywhere as I have a few inverters and solar power stations scattered around my home for light duty, stu9I use all the time, some of which that REALLY sucks some juice through the pipe, like a common coffee maker. Wow. My energy bill was LOW. You do have to adjust to a lifestyle change of sorts to transition, but I am having a great time with it. Looking good! Yes I would recommend this inverter, just be careful unplugging any appliances you plug in OR plug in a power strip and don't use everything connected at one time. Personally, I have been using this long enough now that I am comfortable leaving the power strip on so I can have Alexa turn on the connected lamp. It requires extra attention for safety reasons until you feel comfortable with it. Just turn everything off completely when no one is home to be on the safe side. An incredible value for the money in my opinion.

Takes awhile to do a review because you need a lot of "support" parts to "use" it. Parts like heaver cables and with battery clamps if using a battery already installed in a car, fuses or a circuit breaker, heavy duty extension cords, etc. If you are new to inverters, get ready to add parts. When I finally assembled everything, the inverter worked exactly as expected and did the intended job admirably. I am pleased with the purchase.

Thought Cobra was a good name brand. But two units came with dysfunctional USBC ports. Giving the Cobra company a third try. I almost ordered one more, but, hesitantly got this half price Chinese unit. Wow, solid metal case, bigger power lugs, heavier wiring with bigger copper clips. Photo. Ran blow dryer on low endlessly and effortlessly with car off. Needed car running to add the electric blanket. Way more than just the stated extra 100 watt output. ¯\_(ツ)_/¯ Oh, and AC outlets don't need gorilla effort to insert or remove the plugs. Don't waste your time with the bigger fancy plastic name brand.

This inverter is rated at 1000 watts continuous and 2000 watts peak so i decided to test it. At 700 watts the units and its cables which were direct connected to a deep cycle battery started to become dangerously hot and after a few minutes the unit shut down. I then tried to run a very small air-conditioner with it that has a rotary compressor in it that pulls 400 watts after it cooled off that my other true sine wave inverter runs fine when using the same battery. I had to quickly turn it off because the air-conditioner was making strange noises. However. when i ran another motorized load that uses 200 watts it performed fine. I do not know if this is one defective unit or just a bad design.

I bought this 500W inverter specifically to run a small Frigidaire EFR492 refrigerator off a 12 VDC trailer battery. It is 4.6 cu ft, made by Ningbo of China, and also bought on Amazon, where the page specifies 110 VAC, a bit strange since 120 VAC is normal in the U.S. Digging deep on Frigidaire's website finds specifications of 110-120 VAC and 65 W power, so "should work". It appears the refrigerator controls have a trip which doesn't like the inverter power, my guess due to low voltage. I used my Fluke 123 Scopemeter, which showed a clean sine wave, and exactly 110 VAC. A clamp-on DC ammeter showed the 12 V draw was 0.7 A, both with no load and with refrigerator on, which is the inverter's expected base draw. The inverter's "fault" light occasionally flashed and the output cut-off, but it didn't latch the inverter off as a shop light connected to it would turn back on after 1 sec. Connecting just the LED shop light increased the draw to 1.4 A. Strangely, my multimeter couldn't read the AC output, jumping around wildly, while it showed a steady 119 VAC on my home power where the refrigerator ran fine. Finally, I connected a charger to my trailer's 12 VDC battery to boost input from the inverter from 12.5 VDC to 13.2 VDC. The inverter and refrigerator then worked differently, but still not correct. The DC draw jumped to ~25 A, but came and went. I expected 6 ADC, given the 90% inverter efficiency. The refrigerator motor got warm, but it didn't vibrate like when on home power and the refrigerant didn't get cool. Afterwards, it still ran fine on home power. So, I will return the inverter to try another. No charge for the engineering time. Edit - I later bought a 300 W "pure sine" w/ 120 VAC but also didn't work. Then bought a 1000 W "pure sine" and worked. I measured 7.4 A draw at 11.8 VDC with compressor ON (close to expected) so must have a very high startup surge.

Works great but wish I'd have bought bigger. Maybe a 2500 watt