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Powerful, Flexible, and Built for Energy Independence
The EG4 FlexBOSS21 (V1.1) is a versatile 48V split-phase hybrid inverter/charger, delivering powerful performance and seamless energy management. Designed to handle heavy loads—including a 5-ton AC unit—this advanced inverter supports 21kW of PV input and can be paralleled up to 16 units, offering a staggering 256kW total continuous output.
Equipped with three MPPTs for maximum solar efficiency, the FlexBOSS21 is fully compatible with the latest EG4 monitoring software, allowing for remote management, mobile notifications, and real-time adjustments. Seamlessly integrates with EG4 GridBOSS for complete control over your Energy Storage System (ESS).
Key Features & Benefits
✅ Flexible Power Management – Operate off-grid, with grid support, or sell excess power back to the grid.
✅ High PV Input Voltage (600V DC) – Reduces cabling costs and increases system efficiency.
✅ Scalable & Powerful – Parallel up to 16 units for large-scale energy solutions.
✅ Smart Connectivity – Remote access via Wi-Fi and closed-loop communication with compatible batteries.
✅ Advanced Safety Features – Includes rapid shutdown, ground fault monitoring, arc-fault protection, and compliance with top industry standards.
🔹 Certified for Safety & Compliance:
- UL 1741 Certified
- CEC Solar Equipment Listed
Technical Specifications
📏 Input Voltage Range: 120/240VAC (Split-phase) | 120/208VAC
⚡ Output Power: 16kW continuous (PV input), with 24kW peak surge capacity
📐 Dimensions: 29.5” x 20.5” x 11.2”
⚖️ Weight: 88 lbs
📜 Warranty: 10-year standard warranty covering all major components
Why Choose the EG4 FlexBOSS21?
The FlexBOSS21 offers next-level efficiency, durability, and innovation, making it an ideal solution for both residential and commercial applications. With advanced remote monitoring, seamless grid integration, and high-output capabilities, this inverter ensures reliable power and complete energy control.
💡 Upgrade Your Solar System Today!
Take control of your energy with the EG4 FlexBOSS21 Hybrid Inverter and maximize your solar potential.
🔋 Experience the power of the EG4 FlexBOSS21—built for performance, reliability, and total energy independence.
Powerful, Flexible, and Built for Energy Independence
The EG4 FlexBOSS21 (V1.1) is a versatile 48V split-phase hybrid inverter/charger, delivering powerful performance and seamless energy management. Designed to handle heavy loads—including a 5-ton AC unit—this advanced inverter supports 21kW of PV input and can be paralleled up to 16 units, offering a staggering 256kW total continuous output.
Equipped with three MPPTs for maximum solar efficiency, the FlexBOSS21 is fully compatible with the latest EG4 monitoring software, allowing for remote management, mobile notifications, and real-time adjustments. Seamlessly integrates with EG4 GridBOSS for complete control over your Energy Storage System (ESS).
Key Features & Benefits
✅ Flexible Power Management – Operate off-grid, with grid support, or sell excess power back to the grid.
✅ High PV Input Voltage (600V DC) – Reduces cabling costs and increases system efficiency.
✅ Scalable & Powerful – Parallel up to 16 units for large-scale energy solutions.
✅ Smart Connectivity – Remote access via Wi-Fi and closed-loop communication with compatible batteries.
✅ Advanced Safety Features – Includes rapid shutdown, ground fault monitoring, arc-fault protection, and compliance with top industry standards.
🔹 Certified for Safety & Compliance:
- UL 1741 Certified
- CEC Solar Equipment Listed
Technical Specifications
📏 Input Voltage Range: 120/240VAC (Split-phase) | 120/208VAC
⚡ Output Power: 16kW continuous (PV input), with 24kW peak surge capacity
📐 Dimensions: 29.5” x 20.5” x 11.2”
⚖️ Weight: 88 lbs
📜 Warranty: 10-year standard warranty covering all major components
Why Choose the EG4 FlexBOSS21?
The FlexBOSS21 offers next-level efficiency, durability, and innovation, making it an ideal solution for both residential and commercial applications. With advanced remote monitoring, seamless grid integration, and high-output capabilities, this inverter ensures reliable power and complete energy control.
💡 Upgrade Your Solar System Today!
Take control of your energy with the EG4 FlexBOSS21 Hybrid Inverter and maximize your solar potential.
🔋 Experience the power of the EG4 FlexBOSS21—built for performance, reliability, and total energy independence.
EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version
- Regular price
- $4,199.00
- Sale price
- $4,199.00
- Regular price
-
$5,249.00
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![EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version - ShopSolar: Complete Solar Kits + Lifetime Customer Support](http://shopsolarkits.com/cdn/shop/files/Untitled_design_2.png?v=1770999410&width=80){kind=small}
EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version
Testimonials
50,000+ Happy Customers
Join thousands of happy customers who made the switch to solar.
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
Support
Frequently Asked Questions
Can't find what you're looking for? Reach out to our friendly support team.
Contact SupportYes. Our team can help you choose the right solar kit based on your goals, power needs, and location. We provide personalized guidance before and after your purchase at no additional cost.
Most products ship directly to your door using the most cost effective ground shipping services depending on size. You’ll receive tracking details and delivery coordination as soon as your order ships.
Many of our customers complete the majority of installation themselves using our diagrams and support resources. For final electrical connections, a licensed electrician may be required depending on local codes.
While we do not directly install systems, we can help connect you with qualified local professionals and provide technical documentation to support your installer.
We stand behind our products. If you have specific questions about returns, eligibility, or specific product conditions, you can learn more in our help center linked below.
All components are backed by manufacturer warranties. In addition, our team provides free lifetime technical support to assist you throughout the life of your system.
Yes! We offer a variety of flexible payment plans to fit any budget. Options include monthly financing with competitive interest rates, and some plans require no money down. Apply during checkout and get approved in minutes.
You’ll have direct access to our support team via phone, email, and chat. Whether it’s setup guidance or troubleshooting years down the road, we’re here to help.
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