WZRELB Full Power Full Power Endurable Led Display 800W Pure Sine Wave Solar Inverter 12Vdc to 120Vac, (RBP80012B1)

I purchased the 800W version of this (They make many sizes). I intend to use it to backup my furnace during the winter if a power shortage should occur. I have a Backup sump pump with a marine battery with an estimated 135 amp hours. The sump pump backup system keeps this battery fully charged all the time. My furnace draw about 280 watts once it starts. The inverter can deliver 800 watts constant and handle a surge of 1600 watts. It should be able to run my furnace for about 4- 5 hours continuous, but my furnace typically only runs about 40% of the time so most likely it should keep me going for about one day on my battery This unit is great because if my battery supply drops below a certain voltage the unit shuts down so It would produce a low voltage output. I have not yet had the need to run it So I won't know if it works as planned until the power goes out. I will update if that happens. The unit delivers a solid 120.0 volt output which i verified with a "Killawatt" power monitor and a voltmeter. The unit appears to be well made, and has a rugged metal case that can be safely mounted if need be.

Ive bought quite a few of these. This is the third or fourth one from this company. I still have the one that I bought in 2011, 1,500 watt inverter . Still working great to this day. And it has gotten quite a lot of use. Have not tested out these 800 watt versions as much. But when I ran tests on them they worked just fine. No problems

Good quality brand as far as Inverters go. Reasonably priced.

The good : The fan only comes on when needed and it is not too loud. Quiescent current consumption (switch on but no load) was around 700mA which is less than 10W at 13.6V. Not exceptional for this size inverter but good. When turned off the inverter draws only microamps which is nice. The bad: It is supposed to deliver 800W continuous and 1600W peak. However, the sine wave starts to distort and the voltage begins to sag when exceeding 500W, even on a big sturdy LiFePO4 battery at 50% SOC. It is barely able to start the compressor of a small chest freezer which runs 100W continuous and 800W peak. When used with a larger fridge (160W compressor and 1050W peak) the top of the sine wave flat-lines and the compressor sometimes stalls. Which is risky for the health of the compressor. Flat-lining indicates that the MOSFETs they used are a little underrated, too much Rdson. Long story short, I think the power specifications are exaggerated and I am a bit disappointed.

Lasted ~2 months before blowing a transistor. Update 11/6 - customer service has contacted me and asked to arrange a replacement, and some testing of the bad unit. I have to say I am quite impressed with that offer. I will update further as this process progresses.

A God Send! We use it to power our modem, 3 fans and charge device during an outage.

Just received this item and there are a few issues right from the start. This is sold as brand "WZRELB" then the box is generically branded as "EMC" then you open the box and the inverter unit is branded "YueQing Reliable Electric". Once unpacked, trying to follow the manual is a bit strange, pages are arbitrarily inverted in the "connection" section of the book. Then, it tells you to connect the negative cable to the battery, then negative to inverter. There is then a picture where you are supposed to connect the positive cable to a "spark proof" terminal, which does not exist on this inverter. Presumably, there is a large resistor to pre-charge the capacitors connected to this "spark proof" terminal because it says to connect for 3-5 seconds or more before moving cable and connecting to the actual positive terminal of the inverter. Since that mythical terminal was not present, I pre-charged the capacitors the old fashioned way with a 5 ohm, 50 watt resistor between the positive cable and the positive terminal on the inverter. Powered unit on, it shows 120VAC, but the DC power meter was kind of floppy and pushed back into the case, looks like the hot glue they used dislodged in transit (who uses hot glue or similar as a mounting fastener?) it also was off by over -0.5 volts from what the battery is reporting. I used 4AWG cables, versus the 10mm^2 cables that were included and too thin looking for supporting 800 watts. Next, I used a multimeter to test AC output voltage. Neutral to Hot shows 120VAC, good so far. Neutral to ground shows 48-60VAC, not so good... Hot to ground show 1.3VAC....Even worse, implying hot and ground are likely bonded) I came to the conclusion that the polarity is reversed on the AC, bypassing the convention that neutral is on the longer of the 2 blades which can cause a hot chassis situation on non-grounded equipment. The polarized plug is there for a reason to ensure that no voltage is present on exposed surfaces. One would expect that neutral and ground would be bonded in this unit or at least have a minimal voltage difference between the two. The fact that neutral to ground shows up to 1/2 the output voltage means there is something very wrong with the assembly. The manual then confirms that the black (hot wire) can be connected to the ground! I tested a few small resistive loads, and I got inconsistent output pulling only 272 watts, well shy of the 800 watts this claims it can power. I have a 304Ah battery powering this inverter through oversized 4AWG cables less than 18" (roughly 0.45m) in length. Then to add insult to injury, the manual states you should oversize the inverter by 5-10 times for inductive loads, and the inverter should be run at no more than 80% of its rated output to prolong the lifespan of the product, then later it is recommended to use less than 70% of the stated continuous current. The manual further warns just about every thing you can plug in may exceed the surge rating of any of their inverters. I did not bother to hook up an oscilloscope to this unit as it serves no useful purpose given all the stipulations in the manual. Can't run a tiny fan, can't run a 180W (That is 180 watts, not 1800w) heat gun, the only thing that worked was an incandescent light bulb, LED flickered horribly. This is going back as it is configured in a very dangerous way. If manufacturer corrects AC polarization issue, this might be a little safer for some unknown purpose.

Great price and done just what I needed. For a full wave unit it's going to be hard to find a better unit for the price.

No lo he probado al 100% pero funciona de maravilla, le he conectado ventilador, módem y televisión y lo aguanta.

Was well packaged i use it for my cottage solar system plug it in and worked perfectly and most important silently no fan noise i like the input/ output feature will see for long time usage .

Only used 500w load for 2 hrs . Burnt cables . Smell of burning plastic .

buen inversor

El funcionamiento es todo lo que esperaba, uno de los display que indica el voltaje de entrada no funciona, pero fuera de ese detalle, es un excelente producto, al menos lo suficiente como para no ver la necesidad de devolverlo, así de bien funciona