Solar Charging Adjustable Step UP/Down Power Supply Module 50W Automatic Boost Buck Voltage Regulator Converter

1. Descriptions: ZK-4KX is a DC-DC adjustable constant voltage constant current automatic buck-boost power supply module with LCD display.HD display input voltage and output voltage, current, power, display status, capacity, energy and time.Adjustable stable output voltage and current.Set output current to meet the require.It can be used as ordinary buck power supply module, charger and LED constant current driver.Simple and efficient, practical. It supports solar charging and can be connected to solar battery. 2. Features: 1>.High quality heat sink 2>.Multiple parameters are displayed simultaneous 3>.Enabled/disabled output 4>.Automatic buck/boost voltage 5>.Constant voltage constant current output 6>.Solar charging 7>.Input anti-reverse protection 8>.Output anti-backflow protection 9>.Under voltage protection 10>.Over-voltage protection 11>.Over-current protection 12>.Over power protection 13>.Over temperature protection 14>.Timeout protection 15>.Over capacity protection 16>.Display input voltage 17>.Display output voltage, current, power 18>.Working status indicator 3.Parameters: 1>.Product Name:ZK-4KX DC-DC Step UP Down Power Supply Module 2>.Product Number:ZK-4KX 3>.Working Voltage:DC 5V-30V 4>.Output Voltage:DC 0.5V-30V 5>.Output Power:50W(Max and need fan.Default 35W) 6>.Output Current:4A(Max) 7>.Voltage Display Resolution:0.01V 8>.Voltage Display Resolution:0.001A 9>.Conversion efficiency:About 88% 10>.Work frequency:180KHz 11>.Working Temperature range:-20?~100? 12>.Working Humidity range:0%-95%RH 13>.Size:79*43*49mm 4.Normal Display Mode: 1>.Default normal display. 2>.Long press means need keep press for mo