Module properties: non-isolated step-up module (BOOST) Input voltage: DC10V-40V Input current: 6A (MAX) exceeds4A please enhance heat dissipation Quiescent current: 10mA (12V liter 20V, the output voltage, the higher the current will increase too quiet) Output voltage: 10-50V continuously adjustable Constant] range: 0.2-6A Temperature: -40 to + 85 degrees (ambient temperature is too high, please enhance heat dissipation) Operating frequency: 150KHz Conversion efficiency: up to 96% Overcurrent protection: There Input reverse polarity protection: Yes, Installation: 4 3mm screw holes Connection method: Connection Output Applications: 1. DIY a power supply, 12V can input and output can 12-50V adjustable. 2. the power supply for your electronic device, according to your system can set the output voltage value. 3. as the car power supply for your laptop, PDA or a variety of digital products supply. 4. DIY a mobile notebook power supply: 12V coupled with high-capacity lithium battery pack, so you can go where light where books. 5. solar panel regulator. 6. To the battery, rechargeable lithium batteries. 7. driving high-power LED lights. Different factory batches may have different appearance labels, which will not affect the use of the product Colour:As Shown Material:plastic Package Contents: 2 x Converter Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.