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5mm 7 Color LED Diodes, Round Head DIY Electronic Component LED Diode Lights, Emitting Diodes Bulb LED Lamp for Science Project Experiment - China 5mm LED, LED | Made-in-China.com
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Case study: Light emitting diode] LED is a heavily doped P-N junction
LED Lights - How it Works - History
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LED Lights - How it Works - History
LED Lights - How it Works - History
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