Phocos IP68 10Amp CIS10 Solar Charge Controller 12/24VDC AutoWork Regulator Off Grid/Solar Light System for Battery Charging Epoxy Encapsulated PCB to Prevent Corrosion (IP68) 4 Stage Battery Charging (Main, Float, Boost, Equalization Automatic System Voltage Recognition (12/24 V) Auto-saving function: two voltage disconnect levels Intelligent timer functions available for lighting control, FREE Solar System Design Services Infrared remote control programming accessory (CIS-CU)