Supports complete disability output, anti-reverse protection, short circuit protection, anti-backflow protection, charging function and so on High current and low heat, can be used as ordinary buck power supply module, charger and LED constant current driver and charger, which is simple, efficient and practical. It& 39;s with LCD display which can display input voltage and output voltage, current, power and display status in a high clear way. Item Name: Power Supply Converter Module Input Voltage 3.2V - 40V Output Voltage 1.25V - 35V Output Current: 3A (Max) Conversion Efficiency: 92% (Maximum) Output Ripple: <30mV Switching Frequency: 65KHz Operating Temperature: -45 ℃ - +85 ℃ Features: Smooth Connection, Extra Durable Use, Safety Protection Size: 43mm x 21mm x 14mm/1.69" x 0.83" x 0.55" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Power Supply Converter 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. Sold by-Dadangjia