AC 10-28V to DC 12V AC-DC Converter Power Step-Down Power Supply ModuleFeatures:1. Highly integrated SMD components for high stability and reliability.2. Fireproof plastic housing, safe and reliable.3. IP67 waterproof and dustproof, easy to adapt to different working conditions.4. With overvoltage, overcurrent, short circuit protection.5. Suitable for car screen, surveillance camera, fan, water pump, motor, router, etc. Specification:Input Voltage: AC 10-28V Output Voltage: DC12V ± 0.25V Output Source: 1A/2A/3A/5A (Optional)Output Power: 12W/24W/36W/60W Continuous Working Current: 2A/3.5A Conversion Efficiency: ge; 96%Protection Level: IP67Operating Temperature: -20 - 80 °C Package Package:1 x ConverterNote:1. When the input voltage is AC10-14V, the output current is less than 1A; When the output voltage is 12V, it is not recommended to output with a load at present, because the conversion efficiency is low at this time; The 12V output when charged will cause the output to be unstable and large output fluctuation. The load is too heavy to start!2. When the input voltage is AC15-AC28V, the conversion efficiency of the module is ge; 90%, and the output voltage can keep DC12V ± 0.25V. At this time, the 3A module can support long-term operation within 2A, and the 5A module can support long-term operation within 3.5A!3. The input voltage also supports DC input, and the DC input is DC16-36V. DC input conversion efficiency is low, conversion efficiency is 83%-90% of maximum; When DC input, the input terminal is not divided into positive and negative poles!