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But what do LEDs consist of?
Basically, an LED consists of several layers of semiconductor compounds. Semiconductors, such as silicon, are materials whose electrical conductivity lies between that of conductors, such as the metals silver and copper, and non-conducting materials (insulators) such as PTFE or quartz glass. The conductivity of semiconductors can be greatly influenced by the specific introduction of electrically effective external substances (by means of a process known as doping). The different semiconductor layers together form the LED chip. The type of structure of these layers (various semiconductors) has a crucial bearing on the luminous yield (efficiency) and light colour of the LED.

If a current flows through the LED in the flow direction (from anode + to cathode –), light is created (emitted).

The n-doped layer is prepared by the incorporation of foreign atoms so that there is a surplus of electrons. In the p-doped layer, there are only a small number of these charge-carriers. This produces so-called electron holes (band gaps). When a voltage (+) is applied across the p-doped layer and n-doped layer (-), the charge-carriers move towards each other. At the pn junction, recombination takes place (where oppositely-charged particles combine to form a neutral entity). This process releases energy in the form of light.

FAQ

Q: Product warranty ?
A: 14 months

Q: Is sample availabel ?
A: Yes. Sample order is acceptable

Q: What is terms of packing?
A: Normally we use neutral package.

Q: What is your terms of payment?
A: TT, Paypal, Western Union etc.

Q: How much will the shipping charges be?
A: Depends on the size of your shipment and the method of shipping. It's better to let us know your quanity and shipping way before asking shipping cost.

Q: How long does it take to produce?
A: 7-15 working days are possible to finish your order if raw materials are in stock.

Elite Lighting Technology Corporation Limited was established in 2006, specializes in the production, R&D and sales the lighting and the related electronic products of the automobile and motorcycle.Our main business is selling the HID Xenon Lights, LED lights, parking back vision camera, car-DVD and the other electronic products of automobile and motorcycle. Over the years, our products are exported to over a dozen country including USA, Japan, Canada, Mexico, Spain, Turkey, Germanybecause of our company has been persisting in the management idea of "Survival by Quality, Development by Service, Benefit by Reputation" .We fully realize the good credit standing, the high quality products, the reasonable price and the professional services are the reason that the customers choose us to be their long-term business partner. In the future, we promise to keep offer the high quality and more cost-effective products, the more efficient after sales service to our all customers all over the world for the common development and the higher benefit. Hope we can create a more glorious future with you through our efforts in the future .