ITEM NAME:5pcs LM2596S DC-DC Buck Converter Adjustable Power Supply Step Down Module S5G5 5pcs LM2596S DC-DC Buck Converter Adjustable Power Supply Step Down Module S5G5 Conversion efficiency: Up to 92% (the higher the output voltage, the higher the efficiency) Potentiometer adjustment direction: Clockwise (increase), Anti-clockwise (decrease) Switching frequency: 150KHz Rectifier: Non-synchronous rectification Module properties: Non-isolated step-down module Short circuit protection: Current limiting, self-recovery Operating temperature: Industrial grade (-40 to +85 degrees Celsius) (output power 10W or less) Load regulation: +/- 0.5% Voltage regulation: +/- 2.5% Dynamic response speed: 5% 200uS Connection mode: Welded, plus pin can be directly soldered PCB Input voltage: 3-40V Output voltage: 1.5-35V (adjustable) Output current: Rated current is 2A, maximum 3A (if the output power more than 10W, the heat sink is needed.) Item size: 48 * 22 * 12mm / 1.9 * 0.9 * 0.5in material: metal Package list: 5 * LM2596S DC-DC Step-down Module Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm..5 LM2596S DC-DC Step-down Module. Output current: Rated current is 2A, maximum 3A (if the output power more than 10W, the heat sink is needed.). Module properties: Non-isolated step-down module. Short circuit protection: Current limiting, self-recovery.