BESTEK 500W Power Inverter (Red)

Just right. Bought this to charge a gaming laptop and meta quest vr head set in truck. Works perfectly. It is a bit loud but you ONLY NEED to turn it on if you are using the plug. If you are just using the usb to charge phone or something it does not have to have the fan running.

Great little unit. Works brilliantly powering the 'sensitive' items I've tried so far, all using the 12v power plug. Fan runs immediately from switch on and is noticeable, as others have commented. Case remained cold at the loads I was running. The supplied croc lead cable is not of sufficient size for much above 300W, and would need upgrading, but that's not an issue for me, and I would recommend this unit and buy again, especially at the price, and fast delivery.

I have recently invested heavily in a solar setup to try and reduce our paid for energy consumption. Most of what i have bought includes purpose made solar generators which can be easily transported around the house. I have 3 fixed 200w solar panels and 1 flexible 200w panel which i move around the house dependant on the sun's location. Recently i had to replace my car battery and had the bright idea of trying to use the old 12v car battery as another form of solar power storage. This required me to purchase some additional equipment such as a MPPT charge controller and an inverter. I had a small 300w car inverter that i purchased years ago and thought i would see if it was powerful enough to power a 65" TV. I connected this to the car battery but it did not work, the TV immediately made a buzzing sound and i unplugged it immediately. I highly suspect this may be due to the fact it is not a pure sine wave inverter. I Therefore decided to invest in a small powered pure sine wave inverter - this Bestek had mixed reviews, with some saying it did not output a true sine wave, others however said it worked great. I decided to order and try it out for myself. . The inverter is bright pink in colour and comes with two crocodile clips connectors. The wires are a very thin gauge so i decided to up them to something more substantial. My TV draws around 60w in eco mode with a start up surge just over. The connections to the inverter are simple and straight forward with screw clamps. Once wired to the battery i switched on the inverter and it sprung to life. There is a built in fan which came on immediately even without any load attached - it is fairly noisy! Plugging in my TV the inverter provided the relevant power. There were no humming noises, nor was the audio or picture distorted, this brings me to believe that this inverter is indeed outputting a true sine wave. TV's and other sensitive equipment tend to not like modified sine waves and you will normally hear a buzzing noise. That did not happen with the Bestek. It all worked and i was chuffed! My only criticism of the bestek is the annoying fan noise, even at very low wattage loads the fan kicks in, after a around a minute the fan speeds up and becomes even louder - bearing in mind this was only pulling around 68 watts peak the fan seemed overbearing. We have this inverter in the bedroom and the noise of the fan is distracting, in a larger room you would not notice it as much perhaps. I have included a video review to let you hear the start up fan, towards the end of the video when a small load is applied you can hear the fan noise increase. Build quality wise, it appears good, aluminium chassis, decent UK 3 pin plug outlet, on/off switch on the front and two low powered USB A ports. Overall i am happy with my purchase - it does the job i wanted - i just wish the fan was 'smart' and varied according to need/heat rather than being always on. I hope that you found my review helpful.

Perfect. I'm an engineer and was sceptical of this device at the price but I was honestly amazed at its performance. Pure sine wave, less than 1% THD at 450 watts with a mixture of inductive and resistive loads, that's using a Tektronix Digital Oscilloscope FFT maths function and also in normal mode. Also tried overloading it at 750 Watts for a few minutes. All ok, still Sinusoidal, voltage dropped a bit. Be aware the USB ports are live and consume some power even when the unit is switched off. Also, yes, the fan runs all the time when the unit is switched on, and speeds up when under heavy load.

Easy to install and works perfectly as expected charges all 12 of my tool batteries on the move could not ask for better

As the title says 500 Watt sine wave inverter. Fan is always on and can be a little bit noisy In quiet places runs great

Worked well for just over a month, then stopped working, only ever used it to charge my laptop from 12v. This is the 4th Belkin inverter ive owned. so far 3 out of the 4 have failed after a relatively short period. i went for a larger unit this time in the hope it would be more reliable and instead it was just more costly.

I bought the 500W Pure Sign wave inverter to power my gas central heating boiler from a car battery. It is advertised as producing 230V. The unit actually produces 227V from a fully charged car battery and the product is marked 220v-240v . A small difference but it seems to be enough to upset my boiler control! It looks like a fan is not being properly driven. Otherwise the inverter works fine, powering TVs and other appliances. The voltage seems pretty stable over different power conditions up to 500W.

The two fuses in mine are 40 amp. They make a point that you do not want to hook something up to it that is more than 150 watts if you're using the cigarette lighter in your car. I decided to be on the safe side and replace the 40 amp fuses with 15 amp fuses. I could even go down to 10 amp if I want to make real sure that I have overload protection on a sensitive piece of equipment that I connect up to it. The math on this is very straightforward. A 12 volt battery times a 15 amp fuse is equal to 180 watts. This will keep you within the range of 150 watts of the car. If you want to go lower than that then you could put in a 10 amp fuse and that would end up triggering if something exceeds roughly 120 watts. The point needs to be made that if you really want to take advantage of the full full power of this then you want to use the clips directly on your car battery or on a 12-volt off-grid battery. In this way whatever you're running up to 500 watts will simply drain the battery down to the low warning cutoff. You can always put the 40 amp fuses back in there. You use the fuses in the same way you would use a circuit breaker in your house. if you want to make sure to really protect your equipment then simply go with a lower fuse whether you're using a cigarette lighter on the car or you're using a separate off-grid battery sitting in your tent or in the corner of your house when the power goes out. This would apply to situations where you're running your computer or a CPAP machine and you want to make sure that there is no overload. And, you can see that by using fuses you can buy a 500 watt inverter like this and simply tone it down to where it's going to act more like a 120 to 180 watt inverter. // The inverter that I would love to buy is the one that would come with a tiny little LED screen that reads the voltage on the battery when an off-grid mode and not connected to the vehicle. I charge my batteries to around 13.5 to 14.4 volts. It would be lovely to have an inverter that automatically reads the voltage of the battery so that I could keep an eye on things and make sure that I'm prepared to recharge the battery when it gets down around 11.5 volts. As it is I purchased a inline DC voltmeter so that I can do that, but it's terribly cumbersome and annoying so I took the thing off. IT IS EQUALLY ANNOYING TO HAVE TO USE MY CLAMP VOLTMETER to determine where my battery is at. I highly recommend this for people that live in apartments and are willing to go out and spend the money to buy a 35 amp hour to 100 amp hour battery for emergency purposes. If you find yourself trapped in a city with no power for a couple of days this inverter will prove to be worth its weight in gold or maybe five times its weight in gold because it's a very light inverter. So if you have this and you have a well charged battery you can be guaranteed that your CPAP equipment may run, you can charge your cell phones, and I'm sure there will be other uses. I highly recommend this one because each AC outlet has its own fuse holder. ___________ I took it out of the box, hooked it up to a 35Ah battery, and attached a coffee heater. It works. I still have some equipment tests to run should I need it for an emergency. My voltmeter at the plugs said 116V ac. Being pure sine wave I am very happy to get this. It will likely prove useful in my car for charging batteries for tools on trips. The 500 watts at a price point of $70 is fine with me. My next test will be the drain on my battery for certain items. My need is mostly emergency when we have NO power and I might want to run some lights. This is not the sort of thing you want for running fridges and microwaves. This is excellent for running particular pieces of medical equipment due to low load requirements. Could be very useful in some foreign countries where you might need to siphon energy off of a car battery.

best buy

I have bought two of these already, and they are great power inverters. I still don't understand why they don't use pure sine inverters in vehicles: every time I have to wire one of these to supply clean current to my electronics. This works great, gives a very clean signal, true 500W at a great price.

Buen Inversor

I have been extremely happy with the quality and performance of multiple Bestek inverters I've purchased. They run cool, perform great and have exceeded my expectations. I highly recommend Bestek inverters as a more afforadable option to other name brands without sacraficing quality or function. In addition, Bestek has top notch customer service and actually cares about after sales support. They are very responsive by email with support questions being answered in hours not days or weeks. If you like to tinker with solar projects and you're on a budget, like me, but still want a quality product that is well supported at very competetive price, give Bestek a try. You'll appreciate the experience, value and support. I wish more companies were like this.