USB Step UP/Down Power DC-DC 5V to 3.3V 9V 12V 24V Module Boost Buck Converter
🔌 DC-DC USB Step Up/Down Module – 1.2–24 V Adjustable (Low-Power 3–5 W), Buck-Boost with Display. Note: This is alow-power converter. At very low currents (<10–30 mA), the current display may be blank or inaccurate.