{"product_id":"eg4-flexboss21","title":"EG4 FlexBOSS21 Split-Phase Hybrid Inverter, 21kW PV Input","description":"\u003cp\u003eThe EG4 FlexBOSS21 is a split-phase, all-in-one hybrid inverter built for residential and small commercial off-grid and grid-tied systems. With a class-leading 21kW usable PV (DC) input, it delivers 12kW of continuous AC power even without sunlight and a full 16kW when solar production is available, while feeding through up to 90A of utility power at 120\/240VAC. It's engineered as the enhanced sibling to EG4's flagship 18kPV inverter and is optimized to pair with EG4's GridBOSS MID (power gateway) — a combination that cuts installation costs and time by eliminating redundant components, making it a compelling choice for anyone building a powerful, scalable solar system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Specs:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePV Input: 21kW max usable, 24kW max input\u003c\/li\u003e\n\u003cli\u003eMPPTs: 3, configured as 26A\/26A\/15A — supports up to 5 strings, up to 13A panels, across up to 3 orientations\u003c\/li\u003e\n\u003cli\u003eOn-Grid AC Output: 16kW continuous @ 240V, 13.8kW @ 208V\u003c\/li\u003e\n\u003cli\u003eDelivers 16kW to grid\/loads with PV or battery; 12kW to loads\/battery without PV\u003c\/li\u003e\n\u003cli\u003eNominal AC Output Voltage: 120\/240V | 120\/208V | 240V\u003c\/li\u003e\n\u003cli\u003eNominal Current: 50A\u003c\/li\u003e\n\u003cli\u003eContinuous Output Power: 12,000VA\u003c\/li\u003e\n\u003cli\u003eStarts a 5-ton AC unit easily\u003c\/li\u003e\n\u003cli\u003eGrid Feed-Through: up to 90A at 120\/240VAC\u003c\/li\u003e\n\u003cli\u003eDimensions: 30.4 x 22.3 x 11.2 in.\u003c\/li\u003e\n\u003cli\u003eWeight: 88 lbs.\u003c\/li\u003e\n\u003cli\u003eWarranty: 10 years\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eScalable from 50 to 160 Amps (equivalent to full 200A service), the FlexBOSS21 is built to grow with your system. When paired with a GridBOSS, it adds AC coupling, smart loads, and generator support for a truly flexible off-grid or backup power setup.\u003c\/p\u003e","brand":"EG4","offers":[{"title":"Default Title","offer_id":47631049425086,"sku":null,"price":3599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/0149\/8558\/files\/EG4FlexBOSS21.webp?v=1784510236","url":"https:\/\/lightharvestsolar.com\/products\/eg4-flexboss21","provider":"LightHarvest Solar","version":"1.0","type":"link"}