WZRELB Backup Power Off Grid Pure Sine Wave Inverter 800W 24Vdc to 120Vac 60Hz USA Outlets Power Converter, (RBP80024B1)

UPDATED April 24, 2022 -- I needed to replace my old inverter after six years of daily use. I have now been running the 24-volt model of WZRELB 800 Watt Sine Wave inverter every day for 7 months and it continues to work perfectly. It really does put out true sine wave electricity. I stress-tested it by plugging in my 500 watt full-size refrigerator – which requires 900 watts of surge power for a few seconds when the compressor first clicks on. This inverter didn't even blink and the refrigerator ran fine for a hour before I ended the test.This inverter can actually deliver its stated power rating. I have found many inverters overstate their true capability, claiming something like "1800 watt surge and continuous output of 1200 watts" when in the real world they can only deliver maybe half that. That’s why you see so many bad reviews and returns from disappointed buyers on so many different brands of inverters.THE FAN: Yes, it does make a little bit more noise than some others, but it is thermal-controlled so it only comes for a few seconds every 10 to 15 minutes while putting out a steady, continuous load of 300 watts into my computer and sound system for 4 to 6 hours per day. The inverter's cooling system works well… the metal case of never gets more than a little warm -- you can hold your finger on it indefinitely -- nothing even close to “hot”. Internal heat is what kills inverters, so the fact that this model runs far cooler than any I've used before, means there's a good chance it will run for many years without trouble. No guarantees, of course. I'll update this review from time to time.Tip: A 12-volt inverter takes 12 volts of DC battery current and pumps it up *10 times* to make 120 volts of AC household current output. This is hard work and puts a strain on the electronics. So always turn the inverter on for 10 or 20 seconds... give the innards a chance to warm up... before you plug in a high wattage device.As for the battery cables supplied with the inverter... yeah, they could be thicker (you can never have battery cables that are too thick) -- they are clearly marked as rated for "30 amps". My inverter is a 24-volt model, so 30 amps at 24 volts equates roughly to the inverter putting out 700 watt continuous household current of 120 volts AC. BUT NOTE: Most people will get a 12-volt inverter. 30 amps at 12 volts roughly equals *only* 300 watts of household 120 volt AC power. If you want to get more out of a 12-volt inverter and battery setup, you will definitely need to get thicker cables to go from the battery to the inverter.. This is why the 12 volt car battery in your car has such thick cables. Just get regular automobile battery cables marked size AWG #2 and you would be good to pull 800 watts or more with a 12 volt battery pack.Bottom Line: I have found this WZRELB 800 Watt Sine Wave Inverter does what it claims to do, seems well-designed and built solid. How long will it last in daily use? No idea. I'll update this review from time to time.

I don't normally review products on Amazon, but this one got to me and I am highly recommending against this product due to my review below.I installed this inverter with a 48v LiFePO4 x 100w battery bank, and a 60 amp 48v Solar Charge controller (all ordered from Amazon). I have 4x 250 watt solar panels for the power source, rarely getting more than 600w of input--not an issue with this product, just the lack of sun or poor solar panels, etc.The issue I have, is that the product worked perfectly for around 40 days with my configuration. Yet, with absolutely no changes at all to the configuration, after 40 days, I would turn on this inverter when my battery bank reached a 56.8v floating charge and it would begin to immediately deplete the batteries and cause the Charge Controller to fault.One could say that the batteries may be at fault, but I took them into an auto shop to have them load tested, and they came back fine. One may also say that perhaps the Charge Controller may be malfunctioning; though, the charge controller reads the same voltage as this companies Inverter and reports a fault of over drawn voltage. Please keep in mind that I have no load on the inverter, nothing is plugged into it--the moment I turn it on, it depletes the batteries and is also consuming the 600w from the solar. I am not an electrician, but to me that sounds like a short..... a fault of the device.I contact the seller and explain everything, they tell me to send them a screen shot of my order (sure, fine), but then they ask for pictures, diagrams of my solar setup, videos of what is happening, to use a multimeter and record that, along with a lengthy amount of questions that were already answered in my complaint. I explained to them that I don't have the time to fully comply with everything and to please give me some options, perhaps an RMA or anything. All they did was copy and paste their previous request again in the email instead of offering alternate solutionsI'm sorry, but I am a very busy person, I live off-grid and depend on solar. All this lost time costs me $100s while I have to use my generator and deal with the price of gas instead of rely on the product I was sold. Not to mention that I had to purchase a smaller inverter from Harbor Freight just to offset the gas prices, but I am needing to order a higher wattage inverter still and will not be going back to this company due to their lack of understanding.Will not recommend or buy this product again.

Just received three of these 800W 24Vdc units today and ran them through their paces. They works like a champ! It has no trouble handling my computer loads, all under 300W. I also tested with a 800W space heater and it just ran with it, no issues.With no load it draws around 0.30A @ 26.5V = 8W. That is an impressive number and why I got the 800W version. With a 250W load from a linear power supply (which is pretty nasty), the inverter runs a tad over 85% efficiency which is in-line with the specs. I can't complain.The unit stays cool and is silent with around a 150W load... but every once in a while it does decide to turn its fan on and that is fairly noisy for about 10 seconds. It would have been better to simply run the fan more slowly, then it would be near silent 24x7. A minor nit, but the manufacturer really should make that change. I will probably add some external air flow to prevent that (but I shouldn't really have to, right?). Not gonna dock any stars though. I'm really happy with these units.

But it has been running flawlessly.

This unit did a good job for as long as I tested it but I need a stronger one. It ran most everything in my house. Would not run the dryer or deep well pump.

I'm using this 36v inverter in a 1200w solar system with an 840ah Li battery pack. I've pulled 2kw without difficulty. Output is smooth. Intermittent fan is noisy...wouldn't want it in my living room, but it's OK in the garage. 1 month in, 100 kwh through the inverter, no problem.

The inverter is been working for a few months now and it works ok. Noise is sometimes annoying when the fan runs. One of my computers running in it has a noise issue so I ran some tests and there is no ground on the inverter even though I connected to the home ground without success. I am thinking of changing it to another one with better ground even though I already paid for it and is working.

Funciona muy bien 3 meses uso y sigue trabajando

Après quelques semaines d’utilisation occasionnel le voltage est OK maintenant il va falloir que je te laisse les hertz.

Lo estoy usando en aparatos domesticos

Se usa en un sistema solar aislado