AMC7135 can drive 1 w high power LED according to the 350mA constant current output in order to reach stabilize brightness， increase the effect of the total output power battery. The ultra low differential pressure， low static current characteristics more prolonged the battery operation time. With output short circuit/open circuit protection and built-in overheating protection device， suitable for the application in small volume and airtight space LED flashlight， miner's lamp.