Diode

Diodes asdf media type="custom" key="10889642"  This video shows that electricity will only go one way through a diode. media type="custom" key="10889686" This give a good overview of what an LED looks like and how to determine the cathode (negative side). media type="custom" key="10889758" Just watch the first minute of this video. It does a good job showing you how a diode looks. media type="custom" key="10889906" Check out how bright this LED is !!!!