5V 4AA BatteryHolder

Key Features: Input Voltage: 4.0V to 40V DC Output Voltage: 1.25V to 37V DC (adjustable via potentiometer) Output Current: Max 3A (recommended ≤ 2A for long-term use without heatsink) Conversion Efficiency: Up to 92% Switching Frequency: 150 kHz Voltage Display: Digital voltmeter (can show input or output voltage) Display Range: 0–40V with ±0.1V accuracy Output Ripple: <30mV (typically) Display Functionality: Built-in digital voltmeter with a push button to switch between input and output voltage display. Red LED display for voltage readings.