We are a trading company.One of our client need inverter. they request is as below, Input voltage : 12 VDC from track batteries Requested voltage: 220 VAC 50Hz It has to drive the 1kw motor for air compressor. it is a main application for inverter. would you please send your proposal includ, price for Sample,weight,delivery time, price for 50 pieces, and price for 1000 pieces in 5 party, complete specification.price with and without charger. As our survey, we think they need the 2000 watt inverter for this item. please consider completely and send ur proposal to my email adress as soon as possible. also please send ur complete detail and information of ur company and all contacts.