Brand: QSKJ
Model: QS-1212CCBA-80W
Product Description:
- This is a high performance DC to DC Converter (Auto Boost / Buck )with wide range input from 8-30 volts and variable output from 2-16 volts. 
- Powerful output up to 80 Watts and max. 6 Amps. It can be maintained constant output regularly no matter unstable input voltage. 
Parameters:
- Input voltage: 8-30V 
- Output Voltage: 2-16V (Auto boost & buck, adjustable) 
- Maximum Power: 80Watts 
- Output current: 0.5-6A (Constant current, adjustable) 
- Conversion efficiency: Up to 94% (O/P voltage higher, the higher the efficiency) 
- Standby current: 45mA 
- Input reverse protection: Yes 
- Operating temperature: Industrial grade (-40 ℃ to +85 ℃) (output power 10W or less) 
- Soft Start time: 500ms 
- Full load temperature rise: 40 ℃ 
- Load regulation: ± 2% 
- Voltage regulation: ± 0.5% 
- Dynamic response speed: 5% 200uS 
- Short Circuit Protection: Yes, Output current limit protection 
- Input voltage protection: 7.7V 
- Over Input Protection: Yes, limit up to 36v 
- Operating indicator: Yes, Green > Normal; Red > the work is extremely or protection 
- Input Reverse Protection: Yes 
- Output Ripple: 20mV, 20M bandwidth 
- Installation method: Fixture with 3mm screw, holes distance is 82mm 
- Setting: Pre-set 12V 2.5A (clockwise CC to increase current) 
- Dimension: 72 (L) * 42 (W) * 23 (H) mm (Include wire connectors) 
- Module Properties: Non-isolated Auto step-up/down module (Boost / Buck with constant current / constant voltage) 

Application:
- DIY DC power supply 
- High-power LED constant current driver 
- Primary power for system 
- MP3, MP4, Mobile and other devices 
- Battery DC converter 
- Lithium battery charger 
- Solar panels and wind turbines. 
Typical Application:
- Using for LED constant current driver: 
- Make sure operating current and Max operating Voltage of the LED you need to drive. 
- Adjust the constant voltage potentiometer to make sure the output Voltage is up to LED Max operating Voltage. 
- Use the multi meter in 10A current scale to measure output short-circuit current and adjust the current potentiometer to make sure the output current to the expected LED operating current. 
- Connect LED then test again with above sequent (1,2,3,4 steps to connect the power module input and output load does not take LED.) 
Using for Battery:
- Make sure of the voltage and current of the battery you need to charge. 
- Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage 
- Use the multi-meter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value. 
- Charge transfer lamp current default value is 0.1 times of the charging current(constant current value) 
- For lamp current adjustment, please turn potentiometer adjustment; 
- Connect battery and trying charge up. (1,2,3,4 steps to connect the power module input and output load does not take batteries.)