The M4-CGM04060-0 General Purpose Controller by Johnson Controls is a unit controller designed for general purpose applications. It operates on a 24 VAC power supply and has a maximum power of 14VA. With a compact size of 7-1/2 inches in length, 5-7/8 inches in width, and 2-1/8 inches in thickness, this controller is lightweight at 0.64 lbs and can be easily used in HVAC and refrigeration systems. Compatible with Johnson Controls brand, this controller is a reliable and efficient choice for controlling various functions in your system.