1. 6-30kWh Capacity for weeks of Comfort 2. One 6900W Unit Easily Covers all Your Appliances 3. 5 Ways to Quickly Refill So You're Always in Charge 4. Smart Energy Management on EcoFlow APP 5. 20ms UPS and 0 db under 2000W 6. X-cooling and boost perforamnce with BMS 7. 5-Year Warranty Important : The Manual Transfer Switch requires professional installation by a certified electrician. All associated installation costs are to be covered by the purchaser, who is responsible for securing a qualified electrician in their area. Click to read the Instruction Leaflet of the Manual Transfer Switch. DELTA Pro Ultra User Manual >> DELTA Pro Ultra Accessories >>