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LEDs create light by electroluminescence in a semiconductor material. Electroluminescence is the phenomenon of a material emitting light when electric current or an electric field is passed through it - this happens when electrons are sent through the material and fill electron holes. An electron hole exists where an atom lacks electrons (negatively charged) and therefore has a positive charge. Semiconductor materials like germanium or silicon can be "doped" to create and control the number of electron holes. Doping is the adding of other elements to the semiconductor material to change its properties. By doping a semiconductor you can make two separate types of semiconductors in the same crystal. The boundary between the two types is called a p-n junction. The junction only allows current to pass through it one way, this is why they are used as diodes. LEDs are made using p-n junctions. As electrons pass through one crystal to the other they fill electron holes. They emit photons (light).
What else can I help you with?
Are Christmas lights led lights?
yes they are led lights
Why does your left LED brake light not work at all and your right LED brake light work when taillights are on?
you need to repair the lights and they will both work and your taillights will work properly
Which type of LED lights is popular for holiday usage?
There are many popular types of LED (Light Emitting Diode) lights for the holiday season. This includes LED icicle lights, white wire LED lights and regular LED lights.
Will 2007 Camry LED tail lights work on a 2007 Camry SE?
yes
How much do you know about the led highbay lights?
How much a person knows about LED High Bay lights will depend upon the person. The LED HIgh Bay lights come in different varities such as canopy lights, fixtures, and car lights.
Whose work led to the widespread use of electic or incadescent lights?
Lewis Howard latimer
Whose work led to the widespred use of electric or incadescent lights?
Thomas Alva Edison
Can you have led lights on your motorcycle in MN?
Most likely, yes. Most states could care less about if you have LED lights or not, because LED lights are safer. Many motorcycles are sold with LED lights on them already.
Are LED lights dimmable?
Yes, many LED lights are dimmable. Havells Lighting offers dimmable LED lights designed for smooth brightness control with compatible dimmer switches.
What are the best undercounter lights for kitchen cabinets?
The best undercounter lights for kitchen cabinets are LED strip lights, puck lights, and tape lights. These options provide bright and energy-efficient lighting, making it easier to see and work in the kitchen. LED lights are long-lasting and come in various color temperatures to suit your kitchen's ambiance.
How can I optimize the performance of LED lights by removing ballast?
You can optimize the performance of LED lights by removing the ballast because LED lights do not require a ballast to operate efficiently. Ballasts are used with traditional fluorescent lights to regulate the current, but they are not needed for LED lights. Removing the ballast can improve the energy efficiency and lifespan of the LED lights.
Why do LED lights flicker when connected to a dimmer switch?
LED lights flicker when connected to a dimmer switch because the dimmer switch is designed to work with incandescent bulbs, which have a different way of producing light compared to LEDs. The dimmer switch may not be compatible with the electronic components in the LED lights, causing them to flicker.
