Go PowerGP-ISW3000-12 Industrial Pure Sine Wave Inverter, Black,Yellow

Works great, I got lucky and got one from Amazon Warehouse. Couldn’t see myself paying $900+ for it. But for the price I got it’s amazing. Internal fans are louder than expected but not terrible. One thing I will say if your hooking into your shore power with the ATS. Make sure the power save mode is turned off. Power save mode will think there is no load and it won’t trigger the transfer switch. I learned that the hard way 🤦🏻. This will power everything in my Toy Hauler without a hiccup. Haven’t tried it for the AC units. But if I have to run the AC I’ll just use the onboard Gen. Even though I’d think it would power one of the Units without a problem. Good Job go power!

This is a nice and powerful inverter. Working with my two 100ah LI batteries. The batteries are the week link - as they will only provide 200ah continuous. When installing, we did have to speak with cust. support. The wires inside the inverter which connect to the a/c wires had come off. As a result, the inverter was willing to send power, but not able to as no connection. Got them connected, reset everything and things have been working great. Fans will come on and vary speed depending on load. Unit is in an area that can stay cool. Hope it lasts a long time.

I was hesitant to write a review about this inverter until I verified that it worked after some extended use. It has been providing power to our refrigerator, deep freezer, big screen tv, satellite, computer, etc for many months now without any issues. Being in Arizona, it has operated in a warm, dry environment. The only comment that I'd might mention is that, it has an automatic cooling fan that sometimes sounds like a small jet engine getting ready for takeoff. Because the inverter is located in a separate building from our house, this is not a problem.

3000 w. Compact design. Lighter weight than old inverter. Design has been well thought out as far as wire hook up. Installation manual lacked some technical information and had a misprint as to fuse size. However Go Power technical assistance on the phone was very helpful and answered all questions. My circuit tester indicated I was lacking a ground, technical support said this was normal for an inverter. This wasn’t mentioned in the instruction manual.

I am using this in an off-grid cabin solar setup. MPPT charge controller, 2 320watt solar panels, 2 12v 100ah Lifepo4 lithium batteries.The Good: Reliable well built Inverter. Does what it needs to do. LED lights and a TV running at the same time aren't enough for the external control panel to even read a load output. Running a full size vacuum cleaner it displays about a 30-40% load. This would be great inverter if you are needing to run appliances.The Bad: The inverter itself draws quite a bit of power while its sitting with no load. (I would recommend at least 400ah worth of batteries for this inverter) I tried using power save mode but turning on the cabin lights (About 12 watts) isn't enough to take the inverter out of power save mode so the lights just flicker therefore power save mode is not usable for my case, even with the adjustment turned as sensitive as it goes. The fan kicks on a surprising amount with a small load on it with it being located in a cooler climate. I am downsizing to a 2200 watt inverter so that it uses less standby power, but I am holding onto this one for when I increase my battery capacity and when I need to start running larger items I will switch back to it.

I like the stand-by mode. Saves battery capacity. (Did I mention that I like the stand-by mode?). Runs microwave, vacuum cleaner and 1/2 HP deep well pump. Not all at the same time, of course. I paired it with a 300A in-line meter, helps to manage the batteries.

This inverter worked perfectly for the first 3.5 hours. After shutting it down and attempting to use it a second time, the orange warning light illuminated indicating a problem. I called Go Power technical support and they advised trying a hard reset by disconnecting the power and ground wires for an hour then reconnecting. After completing the hard reset, I received a flashing orange light and beep every second and no power. After removing the inverter I noticed something rattling around inside, opened the case, and found three pieces of a blown MOSFET. I've contacted Go Power for warranty support and am awaiting a response.

These work very well and Id recommend them to anyone. Put two of them in My rv and powers both A/C units and as many tvs as I want as well as microwave!

Purchased in July 2019. Now dead in July 2023. It has a 2 year warranty. It was installed in my sailboat. It was used for a month (day time only and not necessarily all day) in 2019. Used for a few days in 2020. Used for about 6 months in 2021 and then used daily from July 2022 until July 2023. All tolled a little under 2 years worth of use. They have it figured out pretty well how long it will last. Why don't they just figure out how to make it last longer. Over-priced/Under built. Industrial my ass! Junk!