EG4 FlexBOSS18 & GridBOSS Smart Home Energy Control Bundle

Use Cases

Ideal for homeowners looking to achieve seamless battery backup, reduce electricity costs, and gain greater energy independence with a streamlined, all-in-one system.

EG4 GridBOSS V3.1

Please Note: Lifetime Customer Support is based in Texas and available via phone and email. We strongly recommend using a certified solar installer and/or master electrician for professional installation. Please note that additional components may be required for your installation.

Top 3 Scenarios You Would Need a EG4 GridBOSS

In this video, Ray breaks down the top three reasons you might want to install the EG4 GridBOSS in your home solar system. He walks through real-world installation scenarios, showing how the GridBOSS simplifies complex layouts, enables flexible equipment placement, and reduces costly wiring challenges. Ray also explains how the GridBOSS unlocks advanced features like smart load control, AC coupling, and managing critical vs. non-critical loads during outages. If you're considering expanding your solar setup or want more control and flexibility, this hands-on overview highlights when the GridBOSS makes the most sense — and when it might not.

EG4 FlexBOSS 18 - Is This Their Best Product Yet?

We finally got our hands on the EG4 FlexBOSS 18 — the smaller, smarter sibling of the FlexBOSS 21. And honestly? We love it. It's better suited for residential installs, offers a cheaper path for off-grid setups, and when paired with the GridBOSS, it makes hybrid installs way more affordable. If you're a homeowner looking for a solid inverter option, this might just be the sweet spot.