How to Switch a LED easily with a BJT Transistor - techZorro
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Driving an LED using a Transistor
When a BJT is being used as a switch to turn on a LED, why does the LED not turn on when the base is short to the ground? - Quora
Use transistor to control 12v LEDs, schematic help needed - General Electronics - Arduino Forum
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3 Watt, 5 Watt LED DC to DC Constant Current Driver Circuit | Homemade Circuit Projects
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Using Transistor as a Switch | ermicroblog
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How to Use a Transistor as a Switch | Nuts & Volts Magazine
