Feature: Adjustable Voltage Stabilization: With its adjustable buck converter electronic voltage stabilizer this module allows you to fine-tune the output voltage to your specific needs ensuring stable and reliable power for your projects. High Power Output: Capable of delivering up to 3A of current this voltage adjustable board step-down module is perfect for powering high-performance devices such as robots breadboards for arduino boards and cars. Compact and Easy To Use: The LM2596s DC-DC buck converter is small and lightweight making it easy to integrate into your projects. Reliable and Durable: Built with quality components and designed to withstand the rigors of daily use this power supply module is a reliable and durable choice for your electronics projects. Customer Service: If you confront any problems about our products please feel free to contact us we are ready to help. We will solve your problems as soon as possible. Specification: Input Voltage: 3.2V~40V Output Voltage: 1.25V~35V Output Current: 3A(MAX) Conversion Efficiency: 92%(MAX) Output Ripple: <30mV Switching Frequency: 65KHz Working Temperature: -45~ +85 Size: 43mm*21mm*14mm Notes: 1. Due to the different monitor and light effect the actual color maybe a slight different from the picture color. 2. Please allow 1-3cm differs due to manual measurement. includes: 1LM2596S DC-DC Buck Converter "