Description: Two large aluminum heat sinks ensures a better heat dissipation and more stable performance. Five 470uf/35V high frequency low resistance capacitors in parallel special for switch-mode power supply lower output ripple. 23mm large magnet and 1.0 copper wire provides high efficiency work. It has the TVs Diode to prevent Voltage Surge from breaking the chip D, hence allowing safer module operation. Widely used for storage battery, power transformers, DIY adjustable regulated power supply, industrial equipment, 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V, etc. Specification: Material: PCB Borad Size: Approx. 60x51x22mm / 2.36x2.01x0.87inch Type: Non-isolated step-down module (BUCK) Input Voltage: 5V to 40V Output Voltage: 1.2V to 36V (continuously adjustable, default 5V) Output Current: 0A to 12A Power: 100W Operating Temperature: -40? to +85? Frequency: 180KHz Max. Conversion Efficiency: 95% (Efficiency is related to input/output voltage, current and voltage difference) Short Circuit Protection: Yes (14A current limit, please try not to short circuit) Over Temperature Protection: Yes (automatically shut off output) Reverse Input Protection: No Wiring Method: Terminals Package Includes: 1 Piece Car Buck Module Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement