cost of 400w on grid solar system

{"cid":"91193356","title":"400W Interstellar Warrior Solar Street Light with Special design for Park","imgUrl":"https:\/\/img.ismap.com\/nimg\/af\/6e\/4e4b6b64f27b76ec511617acee90-200x200-1.jpg","attrs":{"Brand Name":"Aina","Model Number":"AN-Solar Street-300w","Minimum Order Quantity":"10","Delivery Time":"10 days","Certification":"CE,RoHS","Place of Origin":"China","Payment Terms":"T\/T, Western Union, L\/C, Paypal","Supply Ability":"10000 pcs per day","Packaging Details":"Carton","Light source":"LED","Ip rating":"IP65","Cri (ra>)":"70","Item type":"Street Lights","Warranty(year)":"3","Application":"ROAD,outdoor,Highway,courtyard,Garden","Working temperature(\u2103)":"-20 - 50","Lamp luminous efficiency(lm\/w)":"110"}}