Time Mark’s Splash Pad Controller can sequence up to 12 channels (outputs) with one to four channels active at a time. The controller offers 2 modes of operation: (1) Sequence Mode: Once triggered, the unit will activate up to four outputs for a predetermined time, deactivate those outputs and then repeat with the next outputs in sequence. (2) Random Mode: Once triggered, the unit will activate up to four random outputs for a random amount of time (120 to 300 sec.). After that, the unit will deactivate those outputs (1 to 30 sec.), then pick a new set of outputs. In either mode: you can adjust the total run time, the number of outputs (up to four), the length of time they stay on and the length of time before the next group of outputs come on. Optional custom programming is available.. Specifications: Mount: Panel Mount; Voltage Range: 24VAC