Global Green Energy Eco Manager Solar Controller combines the functions of a photovoltaic charge controller, a photocell sensor, lighting control timer into one unit. It is designed for solar DC power supply system and solar DC lighting system. Features: PWM smart charging. Temperature compensation. Over charge protection and low voltage disconnect. Reverse polarity protection. Short circuit protection, smart detection and automatic re-start. Automatic dawn/dusk detection and advanced time control and work modes. Manual test mode for safe and easy installation. Easy installation, one button setup. LED status indicator. DC or 1HZ flashing output. 12V/24V automatic detection option avaliable. More info... EcoManager_Controller.pdf