0
LED's
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Are colored Christmas tree leds the same as the leds used in grow lights?
No.
What can leds be used for?
lighting stuff?
Where LEDs commonly used today?
In torches,
Are XBOX360 Controllers compatible across different countries?
they can be used no any xbox360
Why do green leds on modern stop lights fail before leds of other colors?
Maybe it's used more? I don't Know.
Can Xbox360 skins be used on the Xbox360 Slim?
No it cannot, they have a different physical style design on the front and sides.
What lights were used in car headlights before LEDs?
Halogen Bulbs
Make a list of the uses for leds?
LEDs are used in traffic lights, on computer lights, car lights and indicators. You can also purchase LED flashlights and torches. Can be used in small devices for a variety of uses.
What ballasts are used for LEDs?
We don't use ballasts for LEDs. Ballasts are used with fluorescent lighting fixtures to both step up voltage to fire the tube and to provide an in-circuit load when the tube fires and conducts. LEDs have a series resistor either integral to the LED or separate to it which limits current in the LED when it is turned on.
What is the most used game system?
The most used game system is the Xbox360.
How much energy does a led use per hour?
LEDs come for different power ratings. Miniature LEDs use between approximately 40-90 mW. High-power LEDs - used for illumination - can use hundreds of watts per square centimeter.
What are the types of LED?
There are a number of major types of LED which are available and being developed. These LED types are summaries below.Traditional inorganic LEDs: This type of LED is the traditional form of diode that has been available since the 1960s. It is manufactured from inorganic materials. Some of the more widely used are compound semiconductors such as Aluminium gallium arsenide, Gallium arsenide phosphide, and many more.These LEDs are typified by the small LED lamps that are used as panel indicators, although there are very many formats for LEDs of this type. However even within the in-organic LED category, there are many different styles of LED:Single colour 5 mm, etc - the very traditional LED packageSurface mount LEDsBi-colour and multicolour LEDs - the types of LEDs contain several individual LEDs that are turned on by different voltages, etc.Flashing LEDs - with a small time integrated into the packageAlphanumeric LED displays. . . . . more . . . .All these different types of inorganic LED are used in very large quantitiesOrganic LEDs: Organic LEDs are a development of the basic idea for the light emitting diode. This type of LED uses organic materials as the name indicates.The traditional types of LED utilise traditional inorganic semiconductors with varying dopant levels and they produce light from the defined PN junction - often this is a point of light. The organic type of LED display is based on organic materials which are manufactured in sheets and provide a diffuse area of light. Typically a very thin film of organic material is printed onto a substrate made of glass. A semiconductor circuit is then used to carry the electrical charges to the imprinted pixels, causing them to glow.High brightness LEDs: High brightness LEDs, HBLEDs, are a type of inorganic LED that are starting to be used for lighting applications. This type of LED is essentially the same as the basic inorganic LED, but has a much greater light output. To generate the higher light output, this LED type requires to be able to handle much higher current levels and power dissipation. Often these LEDs are mounted such that they can be mounted onto a heatsink to remove the unwanted heat.In view of their greater efficiency, this type of LED is being seen as a replacement for incandescent and the various other forms of energy saving or energy efficient lights such as the Compact Fluorescent Lightbulbs, CFLs. The HBLEDs have a greater efficiency level and they also have a longer life, especially when being switched on and off many times. Coupled with their instantaneous transition to full light output, this type of LED is being seen as the way forwards for lighting applications.
