Progressive Dynamics PD1610A 1000 Watt Pure Sine Wave InverterAdd clean AC power to your RV or commercial vehicle with the Progressive Dynamics PD1610A 1000 Watt Pure Sine Wave Inverter. Combining true pure sine wave output with a built in 20 amp transfer switch, this unit seamlessly switches between inverter power and external shore power with no interruptions and UL CSA certification for safety you can count on. True Pure Sine Wave Same Quality as the Grid The PD1610A produces true pure sine wave AC output,