Amazon offers DEWALT DXAEPI1000 Power Inverter 1000W for free shipping.

Product Description:
The DEWALT professional inverter provides a continuous 1000 Watts of power ideal for many applications for the contractor on the job site or simply anyone in need of power away from a 120V power source. One of the most versatile inverters in the market, it can be plugged into the 12V outlet in your automobile or directly to the battery for a full 1000 Watts with attachments included. The LCD screen provides real-time information on the status of power consumption, battery status, and any fault issues.