DC 6V‑30V to 5V Solar Controller Circuit Board Voltage Stabilizing Controller Solar Power Buck USB Circuit Board Item Type: Solar Controller Circuit Board Material: Glass Fiber Gross Weight: 33g / 1.2oz Module Type: dual USB output 3A buck module Power Protection: None Input Voltage: DC 6-30V Output Voltage: 5V (with for iOS identification resistor) Output Current: 2A (MAX) Current Limit Range: None Operating Frequency: 150KHz Conversion Efficiency: up to about 92% efficiency is related to the differential pressure and use of the environment Output Ripple: None Minimum Differential Voltage: 1V Operating Temperature: -40℃ to +85℃ (actual use please pay attention to the power tube temperature, the temperature is too high, please strengthen the heat dissipation or derate the use) Potentiometer Adjustment Direction: adaptive Wiring Mode: DC 5.5 2.1 socket, terminal block Use: Solar voltage stabilization controller