ITEM NAME:LTC1871 DC-DC Adjustable Power Supply Buck Boost Converter Module Step Up New 1x Descriptio n Description: - Specifications: Material: power module color: blue Input voltage: 3 ~ 35V DC (Note: input voltage is less than 4V, the onboard voltmeter is invalid) Input current: 9A (max) Output voltage: 3.5 ~ 35V DC (this board is the booster board, the output voltage should be >= input voltage) Output current: 6A (max) Output power: 65W, (100W can be achieved when the input and output voltages are greater than 20V) Conversion efficiency: 96% (highest) Output ripple: 40mV (TYP) Onboard voltmeter range: 4~40V, error +-0.1V Size: 6.75x4.15x1.4CM Application area: smart home Package Included: Boost Power Module*1 Whatever the ending's perfect or not, you can't disappear from my world LTC1871 DC-DC Adjustable Power Supply Buck Boost Converter Module Step Up New 1x.We'd like to settle any problem in a friendly manner. Material: power module. Output current: 6A (max). Input current: 9A (max). Output ripple: 40mV (TYP). We want to make sure you are happy with our item.