POWLAND 4000W Hybrid Solar Inverter | 24V DC to 120V AC Pure Sine Wave | LCD Display with Glass Top | 140A MPPT Charge Controller | Battery-Less & Lithium/AGM Battery Compatible

I’ve been using the POWLAND 4000W Hybrid Solar Inverter (24V) for a while now, and overall I’m very satisfied with its performance. Installation was straightforward if you have basic electrical knowledge, and the instructions were clear enough to follow. The inverter delivers stable power and the pure sine wave output works well with my appliances, including a refrigerator, lights, and small tools. I really like that it’s an all-in-one unit with a built-in MPPT solar charge controller, which helps keep the system simple and efficient. The LCD display is easy to read and makes it convenient to monitor system status and settings.

Product received in good condition. I have hooked it up and it has been working very well. Have only used one of the MPPT port. I hope the other works just as well. However product has been in use since we had our hurricane on October 28,2025.

I purchased this POWLAND 12000W grid-tied hybrid inverter and paired it with a 51.2V 360Ah battery. From day one, the installation was more challenging than expected. After everything was wired, I ran into Error 53, which I was able to fix by improving the grounding using a 3/4-inch, 10-foot ground rod. Once that was resolved, I noticed a constant battery discharge of about -1487W even with all household loads turned off. Honestly, I’m not entirely sure what fixed that issue, but after several power cycles of both the inverter and the battery, the system eventually stabilized. Later on, I encountered Error 49, which I managed to solve by changing the battery communication protocol settings. It’s been a real trial-and-error process, mainly because the manual is very limited and lacks clear explanations for troubleshooting. That said, once properly configured, the inverter has been working correctly and delivers strong, stable power. Despite the setup challenges, I’m satisfied with its performance so far and plan to add an additional battery in the future. I’d recommend it to experienced users who don’t mind some troubleshooting.

Está muy bueno, lo compré para un familiar que está encantado, llegó rápido y en perfecto estado y mi familia está encantada

This posting and reviews are for multiple devices, so i'm going to copy the name of the item i purchased: POWLAND 3000W solar inverter, pure sine wave inverter, 24V to 110V/120V, built-in 60A MPPT controller, suitable for homes, RVs, and can be used with lithium lead-acid gel battery off-grid systems I've had it for about a month and so far so good. I only have a 4 x 100w 24v panels that i have connected in series along with 2x 12v 280Ah batteries in parallel. I've had it running for over a week with some smaller devices (pulling less than 100w) but have connected to larger sources such as my Fridge, toaster oven and microwave and they all worked. I've not pulled more than ~1500w from the device. There are some negatives; I was not able to use a large connector for the batteries, instead of a 3/8" i had to use a 5/16. It would have been nice to have standard solar connectors instead of the clamp style. The programming of the unit is confusing and kind of bad but not rocket science. I was able to get Solar Assistant working with this unit, configured as SRNE. The following is reported by Solar Assistant (no idea how accurate this is): Driver: SRNE V2 Model number: 13 Nominal battery voltage: 24 V Serial number: <removed> Firmware date: Nov 9 2023 14:39:33 Firmware version: V5.31 Secondary firmware version: V1.07 System date: 0001-01-01 Edit: I'm knocking a star off as this inverter is starting to act a bit odd, maybe it's user error? but the inverter stops accepting PV power randomly. I don't believe the batteries are full as they're currently 27.7V - I have Battery absorption charge voltage set to 28.6V, battery float charge voltage to 27V and battery charge recovery voltage to 26.4V. What's worse is the inverter is sending out power from the batteries, right now about 300W but isn't utilizing ANY of the incoming solar power. The output source priority is Solar, Battery & Utility - there's 0 indication as to why it just decides to stop accepting PV power. If i restart the entire system (turn off AC power, Disconnect PV then batteries & turn it back on, the system will start charging again. for a bit then stop.

Good so far - after just a few weeks. One must carefully read the entire manual to figure out all the settings. Unlike some other (more expensive), all-in-one units this one is limited to only one MPPT input. Minimum solar DC input is 50 volts. Can be noisy - but most of them are anyhow. Seems a good value. --------------------------------------- I've had the unit running for almost two months. Here are my observations: Absolutely NO customer support. NONE. You are 100% your own. For me, emails go unanswered. The manual was poorly translated from Chinese so it's of little use no matter what language you speak. During the last month I think I have tried nearly every different setting available while the batteries continue to drop in voltage. 24/7, the unit never seems to stop running. It's doing SOMETHING - the fans are blowing and energy is being used - but I don't know why. Also, it's loud. Since I can't get customer support and the included manual is worthless, I think I'll probably disconnect the unit and go back to my own DIY home setup which did a better, quieter and much more efficient job. Wish I could report something better. Probably a good idea to spend your money on another, more costly unit. UPDATE: Disconnected the unit yesterday. After measuring AC input from the grid the unit is using about double what my 2,000 watt array produces. Maybe it's just a bad unit? Luckily, I bought the extended warranty. We'll see if Amazon's warranty company comes through, or will I get stuck with my new boat anchor.

Good seller and service thanks

Installé il y a un mois pour une maison dans le nord du Québec, habité à l’année et uniquement alimenté par 6 panneaux solaires 36 volts, 320W groupés 3*2 pour un total possible de 1900 watts et une génératrice inverter Honda de 2.2 kw. Cette nouvelle boite remplace un vieux système à composantes séparées défectueux. Jusqu’à maintenant, remplit bien sa fonction d’alimentation 120V, 24h/7j, ce qui n’a jamais été possible avant. Les équipements alimentés dans la maison: Lumières, antenne satellite + récepteur et tv, radio, internet satellite, 1 congélateur, recharge et utilisation de 2 ordinateurs et 2 Iphones. L’utilisation de la génératrice est nécessaire quelques heures pour la recharge des batteries, les journées nuageuse, car les panneaux ne fournissent à ce moment qu’entre 4 et 12 amp 24 volt. L’avantage de la fonction ups est que lorsque la génératrice fonctionne, elle alimente la maison directement, il est donc possible d’utiliser la petite laveuse à linge ou un petit séchoir à cheveux tout en chargeant les batteries. La consommation moyenne (heure) le jour varie entre 250 et 500 watts. Le système possède une assez grande banque de batteries acide/plomb à décharge profonde de 6 volts connectés en 24 volts, en plusieurs banques en parallèles. On compte ajouter des panneaux solaire pour augmenter la production les journées nuageuses. L’installation à été rapide et facile, quoique je dois mentionner que certaines bornes dans la boite bénéficieraient a être d’un calibre ou deux plus gros. La programmation original était exactement la bonne pour notre application, donc aucun changement nécessaire de ce côté. Le chauffage de la maison est au bois. Le poêle et le gros frigidaire au propane. Très satisfait jusqu’à maintenant.

Alles bestens

The specifications are misleading.....do not because it does not put out 240 volts

Can't get any answers or help in resolving the operation of this item.