Light Emitting Diode: LED

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Presentation transcript:

Light Emitting Diode: LED Skills Building Class Wednesday December 7, 2016

What is an LED? Light-emitting diode Semiconductor Has polarity Low power Long life

Inside a Light Emitting Diode Transparent Plastic Case Terminal Pins Diode

Kinds of LEDs

Christmas Tree Project

Parts List Base (White) Tree String of 10 LED lights with battery pack Toggle switch and wood holder Single green LED

Assembly: Glue tree to base. Attach lights and install batteries. Glue switch to wood holder and glue holder to base. Cut one wire and connect ends to switch. Cut other wire, connect to green LED using red connector Attach green LED other end of switch Test polarity Solder switch connections Glue battery pack to base.