Input voltage: DC 8-35V Input current: 5.5A Output voltage: 5.2V Output current: 8A maximum, current adaptive, and 2A maximum for single-port charging of mobile phone. Dynamic response speed: 300us (load flow changes by 5%)<br><br>Conversion efficiency: 95% (measured from 12V to 5.2V3.5A). Efficiency is related to pressure difference and load size. ) Load regulation rate: 0.2-0.3% (measured by 10%-50% load 12V input) Ripple-noise: 120mvp-p (measured when the bandwidth of 20mhz is 12V to 5.2V3A). Switching frequency: 100KHz No-load current: 18mA (12V measured by 12V vehicle at 5V) Connection mode: IN input OUT input terminal DC block Fixing method: M3 x 1 M2 x 2 Precautions: (1) Don't use it under overvoltage and overload, otherwise it damage the battery and power supply. (2) The module can only but not step up, and cannot supply power to electrical equipment higher than the input voltage. (3) Pay attention to ventilation and heat dissipation when working with high current and high power for a long time, so as to prolong the service life of this power supply. (4) Do not work at full load for a long time. Please leave a 20% allowance when working continuously, and pay attention to ventilation and heat dissipation. Color: As Shown Material: PCB+Metal+ABS<br><br>Package Contents: 1 * charging module<br><br>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.