Review on 🔌 BESTEK 1000W Pure Sine Wave Power Inverter - DC 12V to 110V AC Car Inverter with Digital LCD Display and 4.2A Dual USB Charging Ports by Juzer Rashid

I bought a slightly cheaper modified 1000w sine wave inverter although it was fine to run my fridge but could not power my Cyberpower UPS. The device failed to correct the cheaper inverter's square wave output and failed to pass a clean output to my networking equipment. Further research led me to sine wave inverters like BESTEK. This device was attractive in part because it was cheaper than other inverters and had a battery clip (for quick connection to a car battery). I plan to use it to power my fridge, UPS and maybe some lights. if my power goes out for more than an hour. I was able to power everything with no problems. The unit itself outputs around 115-116V at around 12.5V input and just over 117-119V at around 14V input when my machine is running. The voltage is measured at a constant frequency of 60.5Hz, which is a bit high but shouldn't matter much when isolated from the mains. It doesn't seem to make much noise, but I also use it in my car's engine bay, so it's not a big deal. I have a feeling the intent of this little inverter is to leave it in the car and quickly hook it up to the battery when needed. I highly recommend also having a second vehicle and jumper cables or a small USB starter in case the battery dies. Each battery has a different capacity, so you don't have to leave the car running for short outages, but for longer outages I start the car every few hours for a while. My car had a few starting problems because the inverter was connected under load so unplug it first before starting the car. In case anyone is interested, I am using this inverter to power a CyberPower CP1500PFCLCD. My networking gear includes a PC tower running pfSense as a router, a file server running Unraid that also runs a Unifi controller, a Netgear switch, a Netgear CM600 cable modem, and a POE injector for my Unifi AP. The UPS runs under a 150W load for about an hour, which is enough time for me to connect the inverter. It seems, that everything works normally from the inverter. Since most modern devices won't run (or work, but could be damaged by dirty electricity) with a modified sine wave inverter, it costs money. 1000 watts is enough to power at least the refrigerator and network equipment (usually, with the cable modem turned on, the Internet works even during shutdown).