BESTEK 1000W Car Cigarette Lighter DC Adapter

Very light and compact, powerful at the same time. 7A grinder started with no problem, 150W fridge also starts and works without any issue or overheating. Love the unit. One thing to note that it can not be left connected to a battery for months even when it is powered off. It draws around 30mA to power USB ports, which are always on, and that would drain 8Wh a day.

Excelente inversor

I purchased a slightly cheaper 1000W modified sine wave inverter, while this was fine for running my refrigerator, I was unable to power my Cyberpower UPS. The device was not able to correct for the square wave output of the cheaper inverter and did not deliver a clean output to my networking equipment. Further research lead me to sine wave inverters such as the BESTEK. This unit was partically attractive because it was cheaper than other inverters and had a battery clip (For quick connection to a car battery). I plan on using this to power my refrigerator, UPS, and possibly some lights when experiencing a power loss for more than an hour. I was able to power everything without any problems. The unit itself outputs around 115-116V with around 12.5V input, and slightly higher 117-119V at around 14V input when my car is running. The voltage measured at a consistent 60.5Hz, which is slightly high but shouldn't matter much if isolated from the grid. It doesn't seem to make much noise but I'm also using it in the engine bay of my car so it doesn't matter much. I feel as though the intentions of this small inverter is to leave it in a car and quickly connect it to the battery when needed. I would STRONGLY recommend also having a second car and jumper cables or a small USB jump starter in case the battery runs low. Every battery has different capacities so for short outages, you won't need to keep the car running, but for longer outages I would start the car for a period of time every few hours. My car struggled a bit to start with the inverter connected under load, so disconnect it first before starting the car. If 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 which also runs a Unifi controller, a Netgear switch, Netgear CM600 cable modem, and a POE injector for my Unifi AP. The UPS lasts about an hour under a 150W load, which is enough time for me to hook up the inverter. Everything seems to run off the inverter fine. Since most modern devices won't run off of a modified sine wave inverter (Or will run, but may actually get damaged from the "dirty" power), this is worth the money. 1000W is enough to at least run a refrigerator and networking gear (Usually internet will work when a cable modem is powered, even during an outage). I will be keeping this in my car for road trips too, it should be enough to power all mobile devices and more.

I had been wanting a bigger pure sine inverter to run my electronics. I also have a couple Bestek 300w pure sine inverters and they've been good, so it was a no brainer. Build quality is nice as expected, and the display showing battery level and wattage is nice to have. No surprises here, it works great, I've tested it up to ~500w and it didn't skip a beat. My only minor complaints are that I wish the battery voltage part of the display was a little bigger and I wish it had a low voltage alarm like a lot of other inverters do. In testing I kinda forgot about it for a while and just when I noticed the voltage was dipping around 10v with a little higher load than average, it shut down. No harm done and I usually pay more attention when running off battery but it would have been nice to get a warning.

So portable and easy to use. I needed a PSW of at least 1000 watts. This is so easy to carry and use. It's light weight and has a nice little handle to carry it around. The display has all the usefull information you'd want on an inverter. Really happy with this unit.