Features 1、This boost/buck module can step up or step down voltage and maintain a stable output voltage. 2、Input voltage DC 5V to 30V, adjustable output voltage DC ±5 -24V. 3、Adopting advanced microprocessor, it can accurately adjust output voltage and current. 4、High power, stable performance. 5、Widely used for ADC/DAC transport amplifier power supply, RS232 RS485 RS422 bus power supply, low-power audio power supply, car audio power supply, instrument power supply and LCD backlight power supply. Specification Features: 4. High power, stable performance. 5. Widely used for ADC/DAC transport amplifier power supply, RS232 RS485 RS422 bus power supply, low-power audio power supply, car audio power supply, instrument power supply and LCD backlight power supply. Specification: Max Output Power: 20W Max Conversion Efficiency: 68-89% Static Working Current: 2.5mA Size: 60*34*15mm / 2.36*1.34*0.59in Weight: Approx. 31-34g Package list: 1 * Boost-Buck Converter Module Note: Package List