ALLWEI 300W Car Power Inverter 12V DC to 110V AC Car Inverter-Blue

Item work great no problems. Cord is decent length for inside a vehicle. Might have to adjust plug in for chargers I could only fit one on it but good thing it has the other plug in options that’s helpful. Looks slick like the design for it. Definitely portable, and all the ports display the plug in info.

This is the best thing to have in a car. I’ve used it to pump an air mattress while camping. I like that I can charge more than one device and even have a plug to use. It’s serves the purpose that I need. It can’t handle heavy duty charging…. Tried that and it blew out my battery and needed a jump but I don’t think that is supposed to and I challenged it beyond its capacity. This is my second one and the one I had before lasted about five years before the piece that attached to the cigarette lighter broke. I was good with it lasting that long. I eventually posted it on my local free site for anyone that was handy to fix it. They 3d printed the piece and fixed it!

Use this in my work truck to charge my iPad, phone (quick charge works well) and power my Milwaukee battery charger. Been running solid since I bought it, will update if anything changes. Update: April 2026 this inverter is starting to die, Got just over two years out of it. When charging my tool batteries it will fault out intermittently, I can power it on and off and it will sometimes make it through the charge cycle but more often than not it faults again. I'll give a different brand a try this go around.

This is a lower cost inverter but worka fine. The plug in works easy and the fan is audible. The cable is a little short conaider varible vehicles and plug in locations.

Wow! This little thing is great! Bought this so I can inflate our queen size air mattress while camping. Plugged it into the 12v (what used to be known as the cigarette lighter) in the car and it becomes an electrical outlet. Just be aware of the wattage of what you're trying to power. It depends on your vehicle's limits or it could blow a fuse. My car is around 150W and the air mattress pump I have uses 115W. This is also great for charging phones, laptops or plugging in a lamp. Small enough to store in the glove box of the car.

Five stars! This power inverter has been extremely reliable and works exactly as expected. It easily converts DC power to AC and has been perfect for charging devices and running small electronics on the go. The setup was simple, and it started working right away without any issues. I’ve used it during road trips and in emergency situations, and it consistently delivers steady power without overheating or shutting down. The build feels solid and well-made, and the multiple outlets are very convenient. It’s a must-have for travel, camping, or backup power needs. Very happy with this purchase and would definitely recommend it!

May 2022 Update: product wattage rating LOWER than advertised. With car engine running to keep the car battery at max voltage and not to be a factor and NOTHING plugged into the 2 x USB-A ports), I plugged into outlet #1 my rechargeable Braunn electric shaver and into outlet #2 my ASUS laptop [combined wattage under 300] and the devices would keep cutting out. Only one device would charge at a time. First a laptop would start charging and then after a couple seconds it would beep of being unplugged and then my cell phone again charging. I don't understand why both devices could not charge simultaneously when both devices combined was under the "rated" 300 watts. My advice to those looking to purchase and inverter: WHATEVER YOUR TOTAL WATTAGE NEEDS ARE, DOUBLE IT IF YOU CAN AFFORD TO DO SO. IF YOU'RE WORKING ON A BUDGET INCREASE BY 50%. So if you need 200 watts purchase at least 300watts (50% extra to buffer you from manufacturer's over exaggerated claims) Original review: This model and all brands putting their logo on this model type is something you should PASS ON. PUTTING aside the poor build quality and subpar components that are hidden within this fancy aluminum case, PUTTING aside the short life expectancy of such a product (dont expect this to last a single year with daily use), here are the FLAWS why all these models (150-300 watt) products in this product line should be SKIPPED OVER: 1) Wattage: I doubt many of you will test your product to ensure it actually produces 300w but give it a try (with a voltmeter to verify). My 300w unit struggled to keep a 185w gaming laptop going. 2) outlet placement - this is a biggie. All these models on this product line put both outlets so close together that you really only have ONE OUTLET. Modern phone chargers and devices have a fat plug so 2 plugs can't fit side by side. If they had just SPACED out the 2 outlets by 1 more inch or even ROTATED the second plug 90 degrees so they won't hit each other - that right there shows a lack of design and if such a simple thing was overlooked, makes you wonder what critical components inside were overlooked as well. SUCH AS the power switch being IN THE BACK. And the switch only controls the 2 outlets. The switch doesn't control the USB ports. There are no mounting brackets or way to semi permanent connect inverter. You'll have to DIY your own tape/ Velcro to the dashboard if you don't want it sliding around while driving... Lastly because this is a budget priced model I won't hold the following things against it. But I will mention their absence: - Only 1 cooling fan. This unit gets HOT when maxing out. And at only 300 peak watts it WILL max out often. - Not a pure sine wave. An issue for using this with electronics. Also because its not a pure sine wave it DRAWS MORE POWER from your car battery for the same output. - All USB ports SHARE the amperage output so if you have your phone high speed charging and plug in a second phone then the first phone charging speed will HALVE. -USB ports are NOT on seperate circuits. If one device somehow shorts out and fries the port it will feedback into tbe other USB connected device - NO LCD screen. No indicator lights to alert you when maxing out wattage or when a fuse needs replacing.

Excellent

This arrived while we were away and when we got back it was too late to return. This inverter is only suitable for America and not the UK or Europe. We were confused why an American item was being sold on a UK Amazon site. Our fault I suppose but we did not find any information which stated it was not suitable for the UK