15W DC-DC Buck Boost Converter with Housing, Adjustable CVCC USB Power Supply Module, Step Up Step Down Voltage Regulator Supports Output 3.3V 9V 12V 24V 30V for Electronic DIY Projects

15W DC-DC adjustable power supply module is a multi-functional buck-boost voltage converter integrated with constant voltage and constant current control, equipped with a complete insulating housing for safer DIY electronic experiments.

Adopting high-efficiency DC-DC integrated chip, this module supports both step-up and step-down conversion based on your demand. With 5V USB power input, it can stably output adjustable voltage ranging from 3.3V to 30V, covering the power needs of various low-voltage electronic equipment, LED light strips, small motors, lithium battery charging and sensor test equipment.

It features dual CVCC working modes: constant voltage mode maintains fixed output voltage for device power supply; constant current mode limits stable output current, which is perfect for single-cell and multi-cell lithium battery charging projects. The conversion efficiency stays at a high level during operation, effectively reducing heat generation and energy loss.

Comes with a fully enclosed plastic protective shell, which isolates internal circuit boards to prevent short circuits caused by accidental touching or metal contact, greatly improving operation safety. Compact size with reserved wiring terminals allows simple connection and voltage/current adjustment via built-in potentiometers.

Wide application for electronic maintenance, student laboratory experiments, DIY small equipment power transformation, LED driving and portable battery charging modules. Compatible with all standard 5V USB power adapters, power banks and computer USB ports for flexible power supply access.