4PCS Blue LM2596 Adjustable DC-DC Buck Converter Step Down Module with LED Voltage Display, 4-40V to 1.25-37V Power Supply

About this item

• Product Specifications：The module is equipped with a high-precision LED voltmeter featuring a measurement error of only ±0.1V. It supports an input voltage range of 4.0V–40V and an output range of 1.25V–37V (Note: If the input voltage drops below 4V, the voltmeter will turn off and stop displaying). Press and hold the switch for 1–4 seconds to turn off the display; a light tap will turn it back on.
• Product Advantages：Utilizing a second-generation, low-power, high-efficiency voltage regulation chip with an internal oscillation frequency of 150KHz, combined with high-quality solid capacitors, it effectively filters out high-frequency noise while enhancing circuit stability and durability.
• Convenient Operation Design：The output voltage can be easily adjusted using a miniature screwdriver. Equipped with terminal blocks for quick connections, it supports plug-and-play use without soldering.
• Comprehensive Safety Protection：The input side features dual-diode reverse connection protection, preventing module damage in case of incorrect polarity. Built-in overheating and short-circuit protection are also included (enhanced heat dissipation is recommended when power exceeds 15W).
• Application Scenarios：Widely used in automotive power supplies, DIY projects, industrial equipment, and more, meeting the diverse needs of both professional users and electronics enthusiasts.