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Go Power! 1500 Watt Industrial Pure Sine Wave Inverter Delivers Clean AC Power for Dependable Home Backup and Off-Grid Living
When your microwave won't heat evenly, your laptop acts erratically, or your RV's entertainment system starts flickering the problem usually isn't the appliance. It's the power source. The Go Power! 1500 Watt Industrial Pure Sine Wave Inverter (GP-ISW1500) solves that problem at the root, converting DC battery power into the same smooth, clean AC electricity your home outlets deliver so your devices run exactly the way they're supposed to.
Whether you're a homeowner prepping for the next power outage, an RVer who refuses to sacrifice comfort on the road, or an off-grid professional powering a mobile worksite, the GP-ISW1500 is the kind of quiet workhorse that earns its place in your setup and stays there for the long haul.
The Go Power! 1500 Watt Industrial Pure Sine Wave Inverter might not be the flashiest item in your power setup but it may well be the most important one. When the lights go out, when you're 200 miles from the nearest outlet, or when you're running a business off battery power, you want an inverter you can count on without second-guessing it.
At Outbound Power, we specialize in portable and backup power solutions for homeowners, RVers, off-grid adventurers, and mobile professionals. We carry the GP-ISW1500 because it represents exactly the kind of long-term, dependable investment our customers deserve. Backed by a 2-year warranty and Go Power!'s reputation for industrial-quality builds, this is one piece of gear that pays for itself in reliability alone.
Go Power! 1500 watt Industrial Pure Sine Wave Inverter Features
Your Electronics Get Power as Clean as a Wall Outlet
Pure sine wave output copies exactly what your home outlets produce. No buzzing, no flickering, no damage to sensitive gear. Your microwave, laptop, TV, and stereo all run smoothly just like they do at home.
One Inverter Runs Your Microwave, Laptop, and TV Together
At 1,500 watts, this inverter handles big loads without struggling. Run multiple devices at the same time with zero interference. It's built for real-world use, not just light-duty tasks.
Powersave Mode Stretches Your Battery Life Further Every Day
When nothing is plugged in, the inverter drops to a low-power idle automatically. This small feature saves a surprising amount of energy over time a big win for RVers and off-grid users watching every amp.
Two Safety Outlets Keep You Protected While You Stay Powered
Dual GFCI outlets cut power instantly if something goes wrong. These are the same safe outlets used in kitchens and bathrooms. Two spots to plug in means more flexibility wherever you set up.
Overload Protection Stops Damage Before It Ever Happens
If too much power is drawn at once, the inverter shuts itself down safely. Your devices and the unit stay protected. No blown fuses, no fried electronics just smart, automatic protection doing its job.
The Slim Design Fits Neatly Into Tight Spaces
Built low-profile on purpose, this inverter slides into RV cabinets, vans, and utility closets without a fight. It's tough enough for industrial jobs but compact enough for the tightest installs. Mount it once and forget it.
Pair It With Solar to Build a Complete Off-Grid System
Connect the GP-ISW1500 to the GP-PWM-30 solar controller and turn it on or off remotely. It's also part of the Go Power! WEEKENDER ISW system making it easy to grow your setup over time.
Go Power! 1500 watt Industrial Pure Sine Wave Inverter Warranty
Go Power! provides a 2-year warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.
What's Included
1 x Go Power! 1500 watt Industrial Pure Sine Wave Inverter
Go Power! Power Specifications
Model
GP-ISW1500
Continuous Output Power
1500 W (VA)
Maximum Surge Rating
2650 W (VA)
Output Waveform
Pure Sine Wave
Output Voltage Range ± 3%
100 – 120 VAC (Dip Switch Selectable)
Input Voltage
12 V: 10.5 – 16.5 VDC
24 V: 21 – 33 VDC
Efficiency
12 V: 91%
24 V: 92%
Go Power! Operations Specifications
No Load Current Draw / Powersave
12 V: ≤ 1.8 A / < 0.1 A
24 V: ≤ 1.0 A / < 0.05 A
Input Protection
Over/Under Voltage, Reverse Polarity (Fused)
Output Protection
Short Circuit, Overload, Over/Under Temperature
Low Battery Alarm ± 0.3 V
(± 0.5 V for 24 V inverters)
12 V: 10.5 V
24 V: 21 V
Low Battery Shutdown ± 0.3 V
(± 0.5 V for 24 V inverters)
12 V: 10.5 V
24 V: 21 V
Operating Temperature Range
-4˚ F – 104˚ F (-20˚ C – 40˚ C)
Storage Temperature Range
-22˚ F – 158˚ F (-30˚ C – 40˚ C)
Cooling
Temperature and Load Controller Cooling Fan
AC Output Connections
Dual GFCI Outlet
Remote Power Option
Yes
Go Power! Product Specifications
Dimensions (L x W x H)
16.59” x 9.76” x 3.27”
(421 mm x 248 mm x 83 mm)
Weight
9.13 lbs (4.14 kg)
Warranty
2 Years
Inverter Install Kits
12 V: GP-DC-KIT3
24 V: GP-DC-KIT2
Remotes (Optional)
GP-ISW-R / GP-SWR-A
Regulations and Safety
UL 458, FCC Part 15 Class B
Go Power! 1500 watt Industrial Pure Sine Wave Inverter Manual
Common Customer Questions
Get answers to the most frequently-asked questions customers ask before placing an order.
Is Outbound Power an Authorized Dealer?
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
How long will it take for my order to arrive?
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
What are your shipping rates? Do you offer free shipping?
Everything on our store ships for free. Really!
What is Outbound Power's return policy?
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Are Outbound Power products used/old/refurbished?
Everything sold on our website is brand-new.
Do you price match?
No — we price BEAT! Please refer to our Price Beat Promise for full details.
Great pricing. When I am ready to upgrade, I plan on doing business with you all again. You value customers and that is greatly appreciated. Thanks for everything.
Thank you for your kind words and support! We’re glad to hear you’re satisfied with our pricing and service. We look forward to assisting you with your upgrade when you’re ready. Thanks again for choosing Outbound Power, and please let us know if we can ever be of service.
Exact fit to the Cummins 4500i small battery compartment.
Thank you for your great review! We're glad the battery fit perfectly and met your expectations. If you need anything else, please don’t hesitate to reach out, we’re always here to help.
Hi Sam, thank you for your fantastic review! We're so glad to hear the Pecron Trolley Kit works great for you. If you need any further assistance, feel free to reach out. Cheers!
This was purchased to run a small compressor when our crews are on job sites where running and moving power cords is inconvenient and time consuming. The generator is lightweight and perfect for the task. We're now investing in a second unit.
Thank you for the great review! We’re glad to hear it is making work easier. We truly appreciate your business. Please let us know if there is anything more we can do to be of service!
I like outbound because they give a good deal discount called. They help when you call nice people when you call the number they answer and help thank you
Hi Melvin, thank you for your kind words! We're glad you had a great experience and appreciate your support. If you need anything else, we're here to help!
Excellent service with excellent pricing. By far the best price I could find on the battery. Delivery arrived in perfect condition. love all the tracking information.
Thank you so much for the kind review! We’re glad we could provide a great price and that everything arrived to your satisfaction. We also appreciate you mentioning the tracking updates. We want every customer to feel informed and confident from order to delivery. Thanks again for choosing Outbound Power and please let us know if we can ever be of service!
Thank you for the positive feedback! We strive to provide excellent customer service and we're glad to hear that you had a great experience with us. We appreciate your support and hope to continue serving you in the future!
Outbound Power did a great job with communication and answered all my presale questions. Shipping was prompt - and was patient with me during a small snafu when my neighbor was being “helpful” and took one of the boxes and neglected to tell me. Great prices too!
Hi James, thank you for taking the time to leave us a review. We are thrilled to hear that you had a positive experience with our team! Thank you for your business and please feel welcome to reach out anytime if we can be of service!
Fantastic service from Jam at Outbound Power made this an easy choice.
We are in the installation phase now and are excited to have a reliable system for our power backup needs.
Thank you for your kind words and for choosing Outbound Power for your backup power needs. We're happy to hear that Jam provided fantastic service and helped make the decision process easy for you. Our goal is always to help customers find a reliable backup power solution that fits their needs.
We’re excited for you to begin the installation phase and are confident you’ll be pleased with the Anker SOLIX E10 Smart Hybrid Whole-Home Backup System. Thank you again for choosing Outbound Power!
This works very well. I can charge my unit and expansion batteries more than twice as fast as using a 120 volt wall outlet. I think it also helps with the battery temperature.
Hi there, thank you for your positive feedback! We're glad to hear that the cable is working well for you and is able to charge your unit and expansion batteries at a faster rate. If we can be of service again, please let us know!