ITEM NAME:12V to 3.3V 3A 10W DC/DC Converter Car Power Supply Board Description: - 12V to 3.3V 3A 10W DC/DC Converter Car Power Supply Module; waterproof and dustproof. - Input voltage: DC 12 V (Input Voltage must Higher 3V than Output Voltage) - Output voltage: 3.3V - Output Current: 3A; Output Power :10w; Conversion efficiency: 90% - Over current protection, short circuit protection, high temperature protection. Specification: Size: 3.7*2*2cm/ 1.45x 0.78x 0.78inch Package Includes: 1 piece DC/DC Converter 12v to 3.3v car power adapter.Output Current: 3A; Output Power :10w; Conversion efficiency: 90%. 1 piece DC/DC Converter 12v to 3.3v car power adapter. - Over current protection, short circuit protection, high temperature protection.