In the absence of electricity can use two 9V battery reset（Battery is not included. The green light on the power adapter shows up for several minutes when it is disconnected from the electric. Fully Compatible lift Chair Recliner with OKIN, Limoss and Tranquil Ease Lift Chair,Cheers electric sofa and Power Recline DeltaDrive and BetaDrive Motors with a two pin (flat & round) connection to the motor.