
This the circuit or schematic diagram inexpensive LED flashlight (LED display) at 5 LED amounts that apply runs on a single aa cell battery 1.2V size AA cell and has a cluster of 5 LED. By it use transistor x2 very the circuit is the character switching regulator boost up voltage 1.2V DC from be 3V DC for apply to LED super bright 5 Pcs. usability circuit be this amounts just press SW1 only
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