Key benefits Precise voltage control for varied projects: adjustable stepup/stepdown regulation lets you produce stable voltages across a wide range to match different devices and power sources. Realtime monitoring: a fullview LCD makes it easy to read output voltage, current and accumulated energy metrics so you can check performance at a glance. Safer operation and integration: multiple builtin protections reduce the risk of damage to the module and connected equipment during everyday use. What it does (function and performance) Variable DC stepup/stepdown regulator: accepts an input voltage from 0 to 30.00 V and provides an adjustable output from 0.6 to 30.00 V, supporting both boosting and buck operation. Accurate readouts: displays instantaneous and cumulative parameters including power (W), capacity (Ah), energy (Wh) and elapsed time (h). Control precision: set output voltage and current, and lock those settings to prevent accidental changes. Compatibility and practical use Works with a wide range of DC sources and loads thanks to the broad input and output ranges, making it suitable for battery systems, solar panels, electronics benches and device modification projects. Monitoring and measurement functions make it useful both as a regulated power supply and as a basic capacity/energy tracking tool for testing and maintenance. Safety and protection features Builtin protective functions: antireverse connection, antibackflow, undervoltage protection, overvoltage protection, overcurrent protection, overtemperature protection, and overpower protection. These protections help safeguard the module and attached devices during connection errors, power fluctuations, overloads, and thermal stress. User interface and controls Fullview dedicated LCD for clear, easytoread operation. Encoder button with shortpress function to cycle displayed parameters (W, Ah, Wh, h). Ability to lock set voltage and current to prevent accidental or unauthorized adjustments. Practical scenarios Solar charging regulator: connect a small solar array and use the module to stabilize output voltage for charging batteries or powering DC devices while monitoring energy delivered (Wh) and capacity (Ah). Computer power modification and : produce precise voltages needed for diagnostics, repairs, or modifications to PC components and peripherals while protecting the circuit from overcurrent and reverse connection. Battery testing and maintenance: use the display of capacity (Ah), energy (Wh) and time (h) to evaluate battery discharge characteristics and verify charging performance. Why choose this module Wide input/output ranges and stepup/stepdown capability cover a large set of applications without needing multiple supplies. Integrated LCD and parameter tracking save time by combining regulation, monitoring, and basic measurement in one unit. Comprehensive protection features provide reliable, safe operation in field and bench environments. Note: The module provides voltage regulation, monitoring and safety protection functions as described. Follow standard electrical safety practices when integrating or operating the module.