maintenance free modified square wave inverter

{"cid":"91223233","title":"600va 600w Modified Square Wave Inverter Sine Wave 12v 220v Dc Maintenance Free","imgUrl":"https:\/\/img.ismap.com\/nimg\/5a\/75\/62433912b81e996d75706a887af2-200x200-1.jpg","attrs":{"Price":"US $7.96-18.31","Brand Name":"Sunchonglic","Model Number":"SAA-D600AF","Minimum Order Quantity":"100pcs","Delivery Time":"20-60 work days","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"100000pcs\/mon","Packaging Details":"Paper Box","Product name":"600va 600w Invert Solar Power Inverter Modified Sine Wave 12v 220v Dc","Rated Power":"400W","USB charging":"DC 5V\/1A","Fuse":"10A","Peak efficiency":">90%","Dimensions\/CTN":"1.96KG"}}

{"cid":"91186354","title":"Digital AC DC IGBT Inverter Welding Machine , 315A Argon Arc Welding Equipment","imgUrl":"https:\/\/img.ismap.com\/nimg\/88\/2d\/adc1df04f7870bbd9c10ffd3a29d-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Metalwork","Model Number":"MultiTIG315AC\/DC","Minimum Order Quantity":"1 set","Delivery Time":"15 days","Certification":"CE, ISO, CCC","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"200 sets per month","Packaging Details":"Plywooden box","Rated Input Voltage":"3 Ph, 380V","Pulse Frequency":"50 \/ 60 Hz","Pilot Arc Current":"10-315A","Motor Type":"AC DC Motor","Usage":"Welding","Color":"Green + Black"}}

{"cid":"91213917","title":"Rainproof MPPT Lithium Ion Battery Storage , Multipurpose Iron Phosphate Battery","imgUrl":"https:\/\/img.ismap.com\/nimg\/cd\/ad\/0ce110916c0456e9da9d186a93fa-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Smart","Minimum Order Quantity":"100pcs","Delivery Time":"7-30days","Certification":"ISO9001, ISO14001, UL, CE, ROHS, etc","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"3000 PCS per Month","Packaging Details":"High Capacity Pure Sine Wave 48V 100AH Home Energy Storage Lithium Iron Phosphate Battery With OFF Grid Inverter","Warranty":"5~8 Years","Color":"Matt Black\/Customized","Output Power":"3000W \/Customized","ODM\/OEM":"Acceptable","Solar Charger Type":"MPPT","Communication Interface":"RS232\/USB\/etc.","Operating temperature":"-10\u2103~50\u2103","Maximum AC Charge Current":"60A","Voltage":"48V\/Customized","Capacity":"100A(Customized 200A,300A,500A....\uff09","Inverter efficiency":"91%~94%","Voltage regulation":"\u22645%\uff08Linear load)"}}