Output Frequency: DC-DC Output Type: DUAL Type: DC/DC Converters Number: DD39AJPA Size: 60 x 34 x 15mm Output Current: Less than 3000mA Weight: 29g(no terminal) terminal:no terminal Output Voltage: DC +-3-30V Input Voltage: DC 3.6-30V color:green Material: plastic Description: Maximum output : 20W Conversion efficiency :69-88% Quiescent current: 3mA 20W DC-DC Boost- Converter working frequency 180KHZ. Operating ambient temperature : -40~+85 Degrees Celsius High efficiency up to 88% in Frequency Compensation in Soft- Function in Thermal Shutdown Function in Current Limit Function Note: 1 In order to obtain a more stable voltage, it is recommended the output is greater than 15MA 2 V- cannot be used alone, or no voltage output.But you can just V+ 3 The startup current of the module is 2.5-3 the operating current. 4 Increasing the 1UF-10UF MLCC capacitor reduces the startup current Package Contents: 1 PCS x 20W DC DC Boost- Converter Positive and negative voltage Dual voltage Module Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.