Check the listing for details. EcoFlow DELTA Pro 3 4kWh+400W Solar Panel Solar Generator Certified Refurbished. Color: Galactic Silver, Condition: Certified - Refurbished. Listed at 3499.00 USD. Feature: 【Energize Almost Everything】 The EcoFlow DELTA Pro 3 supports 120V/240V voltage and has a 4000W output (6000W with X-Boost, scalable up to 12000W), powering nearly all essential home appliances, such as a 3-ton* central AC or a 1 HP water pump. 【Forget Refueling】 Featuring a 4000Wh LFP battery capacity, expandable to 48kWh with extra batteries or smart generators, providing 2-4 days of whole-home backup power. With 7 unique and 18 combo charging methods like AC wall outlets, solar panels, gas generators, EV charging piles, or the EcoFlow smart home panel 2, you can forget fuel worries. 【Plug and Play】 Experience hassle-free power with the DELTA Pro 3, a versatile portable power station that's easy to set up, even a kid can manage it. No installation or maintenance required. Its portable handle design makes this solar generator perfect for clean, renewable energy anywhere, anytime. Control and monitor your power with the EcoFlow app, even remotely. 【Silent as a Whisper】 With X-Quiet technology, this solar generator operates at a peaceful hum as low as 30 dB, ensuring undisturbed sleep even beside your bed. Its whisper-quiet operation is so discreet, you'll hardly notice it's there, making it perfect for both indoor and outdoor use. 【Uninterrupted Life】 With the ultra-fast 10 ms switch-over capability of the EcoFlow DELTA Pro 3, enjoy instant backup for your NAS systems, servers, and entertainment devices. Safeguard against power disruptions and ensure continuous, safe operation. This portable power station is your reliable partner for an uninterrupted life. 【Explore the Secure Feeling】 The EcoFlow DELTA Pro 3 features automotive-grade LFP cells and IP65-rated CTC battery pack technology, safeguarding battery health and extending lifespan. Enjoy peace of mind with a 5-year warranty and exceptional customer service, available anytime for any issues.