Output Frequency: DC-DC Output Type: DUAL Type: DC/DC Converters Model Number: DD39AJPAS Size: 60 x 34 x 15mm Output Current: Less than 3000mA Wattage: 29g (without terminal) Terminal: no terminal Output Voltage: DC +-3-30V Input Voltage: DC 3.6-30V Color: Green Material: Plastic Description: Maximum output power: 20W Conversion efficiency: 69-88% Quiescent current: 3mA 20W DC-DC Boost-Buck Converter working frequency 180KHZ. Operating ambient temperature: -40~+85 degrees Celsius High efficiency up to 88% Built-in frequency compensation Built-in soft start function Built-in thermal shutdown function Built-in overcurrent protection function Note: 1 To obtain a more stable voltage, it is recommended that the output be greater than 15MA 2 V- cannot be used alone, or no voltage output. But you can only use V+ 3 The module's starting current is 2.5-3 times the operating current. 4 Increasing the 1UF-10UF MLCC capacitor reduces the starting current Package Contents: 1 pc x 20W DC DC Boost-Buck Converter Positive and Negative Voltage Dual Voltage Module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.