400W DC-DC Step-Up Boost Converter Constant Current Power Supply Module LED Driver Voltage Module This is a great 400W DC-to-DC step-up power supply module for electrical appliances, digital products, laptops, etc. The input and output are equipped with screw terminals for convenient connection and disconnection of cables. High efficiency; the maximum conversion efficiency can reach 96%, and the efficiency depends on the input/output voltage, current, and voltage difference. There are two heat sinks for improved heat dissipation. It can also be used as a driver for LED lights or as a voltage regulator for solar panels. Adjusting the output voltage/current: 1. Turn the "CV-ADJ" potentiometer clockwise to decrease the voltage and counterclockwise to increase it. 2. Turn the "CC-ADJ" potentiometer counterclockwise approximately 30 turns to minimize the output current when connected to the load (clockwise to increase current, counterclockwise to decrease current). Then, turn "CC-ADJ" clockwise to the desired current value. If using the module to charge a battery, connect it to the output after the battery is completely discharged. Because the more energy remains in the battery, the lower the charging current. Color: Photo color Material: Metal + Plastic Type: Non-insulated boost module Input voltage: DC 8.5V to 50V Output voltage: DC 10V to 60V (continuously adjustable, standard 19V) Max. input current: 15A (improves heat dissipation when more than 8A) Max. Output current: 12A (based on the input and output voltage difference; the greater the voltage difference, the lower the output current. Improved heat dissipation when the current exceeds 7A) Quick current: 10 mA (increases when converting 12V to 20V) Constant current range: 0.2A to 12A Output power = Input voltage * Current Operating temperature: -40°C to 85°C (improve heat dissipation if the temperature is too high) Frequency: 150 kHz Max. Conversion efficiency: 96% (Efficiency refers to input/output voltage, current, and voltage difference) Overcurrent protection: Yes (If the input current exceeds 15 A, the output voltage is automatically reduced) Reverse polarity protection: No Size: 67 x 48 x 28 mm / 2.63 x 1.89 x 1.1 inches Package includes: 1 x Module Only the above package contents, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3cm.