Use: 1. Adjustable three-terminal regulator module replace 7805 7806 7809 7812 7824 and all three off the regulator module 2. Car regulated power supply simply Input the module powered cigarette holder termination point on the car you can adjustment potentiometer The output voltage can allow you to adjust for your phone many devices powered MP3 MP4 PSP charging etc. is very simple and convenient at 1.5V~60V. 3. Power for your electronic devices when your device needs 3-60V power supply when but you are now in the hands only 12V or 24V 60V battery. This module can be used directly to buck 3-60V solve your problems. 4. System foreline powered when you do a project when Input supply voltage is below the voltage you need (1.5V~60V) the module that will be your best choice