Take the pain out of regulating your pool or spa temperature with a Goldline Solar Controller. Easy to operate, this controller features a single dial adjustment that allows you to set the desired temperature, letting the controller automatically determine if the water should be solar heated or cooled. And the LED indicators continuously show the status of the system operation. It couldn"t be easier! Includes Controller, Diverter Valve, Actuator & Sensors. Automatically maximizes solar systems and has a precise calibrated temperature setting dial. The single model handles all systems-old or new pools, spas, 12 or 24VAC Actuators. Automatic switch over from solar heating to nocturnal cooling if desired. Standard 120/240 VAC 50/60 Hz. input & 12 and 24 VAC output. Goldline"s proven reliability and performance.