Features: The LM2596 power module delivers stable constant current/voltages output (7-35V input) with 90%+ conversion efficiency, ideal for precise LED driver circuits and battery charging systems. Featuring adjustable current/voltages via potentiometer, comprehensive overloads/short circuits protections, and optimized design, this compactly voltages conversion ensures reliable performances in demanding conditions. Perfect for electronics engineers, DIY enthusiasts, and industrial designers requiring efficient power management solution for prototyping or embeddedly systems. Safely power LED arrays, charges 3.7V 24V batteries, and stabilizes voltages for automotive electronics, laboratory equipment, and portable devices. Engineered with metal heat sinks, this versatiled conversion module combines space saving design (48x23x14mm) with laboratory grade precise for professional applications. - Specifications: Model：LM2596 power module Material: Metal Size: about 48x23x14mm/1.88x0.90x0.55in (Length x Width x Height) Module properties: Not-isolated steps-down module Rectification method: asynchronous rectification Input voltages: 7V-35V Output voltages: 1.25V-30V Output current: adjustable, large 3A Conversion efficiency: 92% Switching frequency: 150KHz Output: 50mV 20M bandwidth Load adjustment rate: ±0.5% voltages adjustment rate: ±2.5% Operating temperature -40℃ to +85℃ Quantity: 5pcs/ 10pcs Package Includes: 1Set M2596 Power module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution