Digital voltage regulator board with the XL4016 chip for precise voltage control in DIY electronics. Accurate output monitoring Realtime display shows output voltage within 1V, providing confidence during operation without the need for additional testing tools. Efficient cooling system Aluminum alloy heat sink design helps prevent overheating during use. Recommended current limit of 5A. Multifunctional applications Suitable for creating circuits such as resonant circuits or filters. Compatible with both DC and resistive AC inputs. Use scenarios Powering a microcontroller, sensors, or small motors in a DIY project with a stable, adjustable DC supply. Prototyping resonant or filter circuits that require an adjustable and verifiable supply during testing. Educational lab work or hobbyist experiments that need a compact regulator capable of handling DC or resistive AC inputs.