SKU: 97238095845

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version

Sale price$1633.46 Regular price$1814.95
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest VersionPowerful, 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 loadsincluding a 5 ton AC unitthis 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

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97238095845

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4.4 ★★★★★
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Clash E
Omaha, US
★★★★★ 5
Improved Sleep
Color: Dark Grey & White, Size: Adjustable 9&12 Inch + 1 Head Pillow
I got this to help with my sleep since I can't lay flat. It works great. My back started hurting because of the angle but that's because I can't sleep on my back and slide down on my side. It's very comfy and works well for what I need it to do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
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KRN
Phoenix, US
★★★★★ 5
Very Comfortable
Great! I was a little concerned when it came so tightly shrink wrapped, but a day or two later and it’s in great shape. It’s actually pretty comfortable, good angle. It’s a good width and pretty long to accommodate all body types. I like it can be two heights. My adult kids said it felt like memory foam. I can add my own pillow too to further adjust to my liking. I occasionally get bad heartburn or sick where I need to sleep sitting up. This helps me do that in bed. I tried using it every night at first because I usually sleep with two large stacked pillows, but I’m a side sleeper and it eventually hurt my neck. So, not great if you sleep on your side. I also just lay a pillow case across it to keep clean. You can unzip and take off the cover for cleaning, but I almost never get stuff like that back on right. I got the dark gray cover and I like the soft feel. I’m glad I got it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
M
Verified Purchase
Maria B.Porter
Houston, US
★★★★★ 5
Lifesaver while recovering from rotator cuff surgery
This pillow was a lifesaver, it’s sturdy yet comfortable and can be used many different ways! Great price and size too! I like that when I opened it, there was no smell! If you’re looking for a wedge pillow, this one will do the job!!
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Reviewed in the United States on March 10, 2026
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Verified Purchase
Mary M.
Battle Creek, US
★★★★★ 4
It is a great wedge pillow, but takes time to get used to sleeping on your back
Color: Dark Grey & White, Size: Adjustable 9&12 Inch + 1 Head Pillow
I bought this for post-surgery, I had to sleep on my back. Nearly impossible as a lifelong side sleeper. It is memory foam, and it does seem to run hot. But after a couple of weeks, I'm adjusting to it. Back sleeping is best for saving your face from AM wrinkles and mascara smears all over pillows. (Yes I know, I should take off mascara before bed, but....). Now that I've adjusted to sleeping with it, it stays on my bed and I wake up without the creases on my face and neck! So if you are buying pre-surgery, buy in advance to adjust to a new style of sleeping! I'm keeping it!
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Reviewed in the United States on November 7, 2025
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Allison
Omaha, US
★★★★★ 5
Its worth the purchase!
Color: Black, Size: Adjustable 9&12 Inch + 1 Head Pillow
Bought this pillow because Im dealing with both GERD and neck pain so I decided to order this and hope for the best thats being said Im so glad I did because its helped me a lot with both issues. Some extra comments: Its a little firm but not in a bad way and the head rest is comfy but I do wish I could bring it down lower.
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Reviewed in the United States on June 3, 2026

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