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.k200, in.k19, in.k35, in.k450, in.k600 static, in.k120 (auxiliary) and in.touch Wi-Fi module.