Introduction This module can be applied to fields in the input voltage is higher than the step-down output voltage, such as batteries, power transformers, DIY adjustable power supply, 24V car T of the power supply, automotive LED lights with power, industrial equipment buck, 12V switch 3.3 V, 12V turn 5V, 24V turn 5V, 24V 12V, etc. B switch Specification Input voltage: 4.5-30V input voltages do not exceed 30V Output voltage: 1.25-30V continuously adjustable Output Current: 0-12A 100W enhance heat dissipation up to 200W, Working temperature: -40 ~ + 85 degrees Operating frequency: 300KHz Conversion efficiency: up to 95% (efficiency and input and output voltage, current, pressure-related) Short circuit protection: Yes (limited current 14A), please try not to short circuit Overtemperature protection: (automatically shut off the output after overtemperature) Input reverse polarity protection: None, (if necessary, please enter the string into the diode) Installation: four 3mm screws Connection: terminals, free welding, V-IN is the input, V-OUT output, with housing for wire bonding module output. Module dimensions: length 60mm width 51mm height 22mm Weight: 76G