Qunqi XL6009 3-32V to 5-35V DC-DC Adapter Booster Step-up Module This is a 4A switching current performance boost (BOOST) module. The module uses the second generation of high-frequency switching technology XL6009E1 core chip performance than the first generation technology LM2577. Input 3V Output 12V 0.4A 4.8W Input 5V Output 12V 0.8A 9.6W Input 7.4V Output 12V 1.5A 18W Input 12V Output 15V 2A 30W Input 12V Output 16V 2A 32W Input 12V Output 18V 1.6A 28.8W Input 12V Output 19V 1.5A 28.5W Input 12V Output 24V 1 A 24W Vin * Iin * Efficiency = Vout * Iout Vin: Input Voltage Iin: input current Vout: Output Voltage Iout: output current 1x XL6009 Module