Aeware controller for spa. in.yj supports 2 configurable outputs, and is compatible with the 4kW heater (sold separately) and a standard 12V DC light (6W max). Ideal for entry level spas with pump 1 with 1 or 2 speeds and ozonator tied to pump 1 low. Direct connection for Audio available (the output voltage can be configured on the board). Works with keypads in.k800, in.k500, in.k1000, in.k200, in.k300, in.k19, in.k35, in.k8, in.k450, in.k600 static, in.k120 (auxiliary) and in.touch mobile remote control.