Descriptions: This module can be used for DIY modified cars, motorcycles, mobile power, battery USB charging port, to the phone, MP3 or other digital products charge, high efficiency, versatile Not to say that the power module has 5A current, there will be 5A current charge to the phone. The size of the charging current is determined by the power supply IC inside the phone. Why the output is 5.2V instead of 5V Because taking into account the charge line has 0.2-0.3V pressure drop, if the phone inside the voltage is only 4.7V, then its charge management software to detect the input voltage is less than 5V will open the slow charge mode. The output voltage at 5.2V, it will not appear above this situation. Features: 1. Synchronous rectification scheme, wide voltage, high current, high efficiency; 2. With terminal blocks and DC plug, easy to use; 3.4 USB ports, all with fast charging identification chip, compatible with Andrews iphone 4. With fine aluminum shell, easy to use. Specifications: 1: Operating voltage: DC 9V - 36V 2: with input reverse protection, output short circuit protection 3: Output voltage: 5.2V / 5A / 25W 4: Output capacity: 9 ~ 24V Input: Output 5.2V / 6A / 30W 24 ~ 32V Input: Output 5.2V / 5A / 25W 32 ~ 36V Input: Output 5.2V / 3.5A / 18W 5: Size: 70x40x30cm (LxWxH) Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Contents: 1 Pc x Power Supply Module