... Campus Lightingl Ramp Lightingl Wildlife Area Lighting Specifications Solar panel280W, polycrystalline, conversion efficiency 15%Light source60W, ... 8 meter high, made of hot dip galvanized steel and powder coating Controller 12V 20A solar charge controllerBattery 12V 200Ah, ... equivalent to approximately half the wattage of high pressure sodium lightl Controller : over 8 years of typical operating ...