I bought this in order to be able to test powered things when I buy stuff on Facebook Marketplace. When I got it, I plugged it into the car port in the back of my tahoe and it worked from what I could tell, and was reaffirmed in my observations when I tested a powered subwoofer in the middle of a Best Buy parking lot. Was honestly vindicating as I had been scammed- well, bought something that didn't work and just trusting the guy- before, and I was happy to see the results of this purchase. Don't know the longevity though as I have honestly only used it once, and I keep it unplugged when I'm not using it because my car doesn't turn off the ports when its off and will drain its own battery.

I use this for charging my laptop in my car, works great so far!

I bought these back in 2017 to be able to have power while my husband was driving a semi truck.He no longer drives and truck but these are in all of our vehicles, in his out-of-town bag, and weve even let friends and family borrow them for trips.We always take these on trips and they work really well.They do make a small humming noise. I love that they have a on/off switch on the back so you dont have to unplug it but you can cut power to the device. I also love how you can hook multiple items to it. We usually have this baby full when we go out of town and we have never had a problem.10/10 would recommend..Date Start: Oct 1st, 2017Todays Date: January 30th, 2023 and still going strong

Bought this at the beginning of 2017 for camping stuff and it has gotten a good amount of use over the years and never had a hiccup or issue with it. Great product

Works great in my truck. Doesn't overheat.

Works fine for me just make sure this item is comparable with what you want it for .

This is a great product!!!!love using this product while cleaning my car

I can connect my tv, my phone cords, even a truck fridge with a 12V cord. i love it. its very quite and looks great.

Good device. Can charge laptop in vehicle.

Originally, I got this as an indoor back-up power supply that I have running off of a 530 MCA deep cycle marine battery. I have another inverter that is 50 lower continuous output power (150 watts) and its internal cooling fan (bushings instead of ball bearings) quit. This unit says to have a Smart Fan, so I thought I give it a try. It runs much quieter than the 150-watt inverter with single speed cooling fan (when it used to run). I tried to get the cooling fan on this 300-watt inverter to run faster by increasing the load, but the fan didn't increase much on speed. But the inverter wasn't getting warm either as the load was only 212 watts, not the full 300 watts.Right now, I have the 300-watt inverter powering my 8-channel security camera set-up with DVR via since the old APC Smart UPS 700 keeps melting the batteries. The UPS doesn't stop charging the batteries when they become fully charged, causing them to overheat melt. So for now, the camera set-up is running off of the 300-watt inverter, which is running off of the marine battery, which that is charged by an automatic battery charger/conditioner. This current configuration will run the DVR cameras for 3 full days on a charge versus a couple hours on the UPS.

Bought this only to play xbox while charging the carAll ive done is plugged it in to see if it will work. So far it worked. Will check back in some time to see how it holds up or if it blows any fuses or works flawlessly. The set up is a xbox series s with the xscreen, the car is bmw i4

I bought this for a 50h driving trip where I needed to work much of it in the passenger seat. My laptop is a Legion 5 Pro, which requires the full 300W to charge. I didn't think it was possible for cigarette outlet to push out that much, since most of these inverters are in the 100W range. But it did! So I can vouch for at least 25h of 300W consistent usage.

I bought this and it straight up just doesn't work

Got this to plug my spare tire lighted wreath into on the back of my car and it was perfect!

Used this to play my Xbox 1 and use a pc monitor in the back seat on a long road trip. Worked out well.

Only takes standard plugs and no USB c.

I bought this to power lights for a Christmas parade. Very quiet inverter. I liked that I could turn it on and off on the side instead of unplugging from the vehicle's plug.

Amazing

Used to connect my laptop and phone while driving for 12 hours. Quite and fast charge for the phone.

Just what i needed under 20 bucks