Description: 5A constant current and voltage module with MPPT control. Effectively shorten the time of solar battery charging. Maximum 95% conversion efficiency, improve charging efficiency. Can charge batteries, lithium batteries, etc. and with turn light control. Power supply for the mobile phone or a variety of digital products, as a vehicle power supply, driving high power LED. Specification: Properties: Non-isolated buck module (BUCK) Input voltage: 6-36V Output voltage:1.25-32V continuously adjustable (the default output 5V) MPPT voltage setting range: 6-36V Output current range: 0.05-5A (The default output current is 3A,within 3A for a long time) Turn lights output range: 0.01-5A (default 0.3A) the current range will be a little difference because the parts parameter error. Multifunctional double display: input voltage, output voltage, output current, output power Operating temperature: -40 to + 85 degrees Operating frequency: 180KHz Conversion efficiency: up to 95% (efficiency is related with input voltate,output voltage,current and voltage difference) Short circuit protection: Yes Over temperature protection:Yes (automatically shut off the output after overtemperature) Input reverse polarity protection: None, (if necessary, please add the string into the diode) Output anti-irrigation protection: None, the output must be connected to the battery plus blocking diode, otherwise it will burn the module! Charging indicator:charging red, fully charged green. Turn light detection way for current.When using solar panels to supply electricity,the small sun charge current is also very small, less than turn light's current, it will green light,but it is not full, please note that distinction. Installation: 3mm screws(4) Connection:Terminals, IN is input, OUT is output Size:60*31*22 mm(L * W * H) Package Includes: 1 Piece MPPT DC-DC buck converter (2 Pack) Note: The current detection module is the low-end testing, please do not directly connect the input negative with the output negative!