EG4 FlexBOSS18 Hybrid Solar Inverter | 18kW PV / 13kW AC | Split-Phase | 3-MPPT | Scalable | Remote Wi-Fi Monitoring

EG4 FlexBOSS18 Hybrid Inverter Delivers High-Capacity Solar Power for Reliable Home and Commercial Energy

The EG4 FlexBOSS18 Hybrid Inverter brings next-level solar power management to homeowners, RV travelers, off-grid adventurers, and mobile businesses. Designed to handle up to 18,000W of photovoltaic (PV) input and paired with dual MPPTs supporting four solar strings, this inverter ensures your solar energy system runs efficiently, reliably, and with maximum flexibility. Whether you’re safeguarding your home from outages, equipping your RV with steady power, or powering a small business off-grid, the FlexBOSS18 provides the control and reliability modern energy systems demand.

This split-phase hybrid inverter pairs seamlessly with EG4’s GridBOSS MID gateway to offer smart load management, AC coupling, and generator support. By integrating these advanced features, you gain reduced installation times, simplified system management, and energy control that puts you firmly in charge. The EG4 FlexBOSS18 Hybrid Inverter is a future-ready investment designed to grow with your energy needs while delivering consistent, safe, and scalable power.

When you choose the EG4 FlexBOSS18 Hybrid Inverter, you’re investing in more than just an inverter you’re gaining peace of mind, scalable power, and expert-backed reliability. Outbound Power delivers the guidance, support, and proven products you need to create solar or hybrid systems that perform day after day. Upgrade your home, RV, or off-grid site with confidence, knowing your energy system is built to last.

EG4 FlexBOSS18 Hybrid Inverter Features

Handles Large Solar Input So You Get More Power Daily

The EG4 FlexBOSS18 Hybrid Inverter supports up to 18,000 watts of solar input, helping you collect more energy from your panels. This means better energy production, lower electricity bills, and more reliable power for your home, RV, or business.

Uses Dual MPPT So Your Panels Work More Efficiently

With dual MPPT technology, this inverter tracks the best power point for each solar string. It improves energy output even with shade or uneven sunlight, giving you steady and efficient performance across different panel setups.

Supports Split Phase Power So You Can Run Heavy Appliances

This inverter delivers 120V and 240V split-phase output, allowing you to power large appliances like air conditioners, pumps, and tools. It is ideal for homes, off-grid setups, and worksites that need strong and stable power.

Works With Grid And Generator So You Always Have Backup

The EG4 FlexBOSS18 Hybrid Inverter connects easily to the grid and generators. It switches smoothly between power sources, keeping your lights and devices running during outages or low solar production without manual effort.

Includes Smart Monitoring So You Stay In Control Anywhere

With built-in Wi-Fi and remote monitoring, you can check system performance anytime using your phone. Get real-time updates, alerts, and system data so you can manage your energy use easily wherever you are.

Built With Strong Safety Features So Your System Stays Protected

This inverter includes rapid shutdown, arc fault, and ground fault protection. These features help prevent electrical risks and protect your home, equipment, and users, giving you peace of mind every day.

Designed For Easy Setup So You Save Time And Costs

The FlexBOSS18 works smoothly with EG4 GridBOSS systems, making installation faster and simpler. This reduces labor time and setup costs, helping you get your solar system running quickly without complex wiring or extra equipment.

EG4 FlexBOSS18 Hybrid Solar Inverter Warranty

EG4 provides a limited 10-year warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.

What's Included

• 1 x EG4 FlexBOSS18 Hybrid Inverter
• 1 x Wi-fi Dongle
• 1 x Wall Mount Template
• 2 x CT 
• 2 x L Bracket
• 4 x RJ485 Terminals
• 1 x Mounting Bracket
• 4 x Phillips Head M5x10 
• 4 x Philips Head M3x10 
• 1 x User Manual
• 1 x Battery Comm. Cable L=2m (orange)
• 1 x Parallel Comm. Cable L=2m (grey)
• 6 x Sheet Metal/Wood Screw
• 6 x Expansion Bolts

EG4 FlexBOSS18 Hybrid Inverter Manual