For people who do not have a paypal account, I would recommend that they get one for making online purchases, etc. Especially good for merchants. So, if you are interested please join with through the banner below. Many thanks.
Sign up for PayPal and start accepting credit card payments instantly.
For all my myLot friends - I would like to share some advice that some of my friends on myLot told me about. I thought I'd share it with you, since it can really multiply your earnings on myLot. I have been informed that, when you post/reply to discussions, if you write at least six lines, you will be paid a higher amount for that, than if you were to just write one or two lines. If you can keep your sentences short, then six lines is not a lot ! So friends, try to keep this advice in mind for your future discussions and the money start to add up quicker than it was before.

Thursday, March 22, 2012

Enhance your visibility with led interior lights

    A light-emitting diode (LED) is a semiconductor light source. The led interior lights are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness.

    When a light-emitting diode is switched on, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the color of the light (corresponding to the energy of the photon) is determined by the energy gap of the semiconductor. LEDs are often small in area (less than 1 mm2), and integrated optical components may be used to shape its radiation pattern.

    Light-emitting diodes are used in applications as diverse as aviation lighting, automotive lighting, advertising, general lighting, traffic lights, led interior lights, led car lights and car interior lights. LEDs have allowed new text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology. Infrared LEDs are also used in the remote control units of many commercial products including televisions, DVD players, and other domestic appliances.

    Miniature single-die LEDs used as indicators, and they come in various sizes from 2 mm to 8 mm through-hole or surface mount packages. They usually do not use a separate heat sink. Typical current ratings ranges from around 1 mA to above 20 mA. The small size sets a natural upper boundary on power consumption due to heat caused by the high current density and need for a heat sink.

    Common package shapes include round, with a domed or flat top, rectangular with a flat top (as used in bar-graph displays), and triangular or square with a flat top. The encapsulation may also be clear or tinted to improve contrast and viewing angle.
    Medium-power LEDs are often through-hole-mounted and used when an output of a few lumen is needed. They sometimes have the diode mounted to four leads (two cathode leads, two anode leads) for better heat conduction and carry an integrated lens. An example of this is the Superflux package, from Philips Lumileds. These LEDs are most commonly used in light panels, emergency lighting, and automotive tail-lights. Due to the larger amount of metal in the LED, they are able to handle higher currents (around 100 mA). The higher current allows for the higher light output required for tail-lights and emergency lighting.

    High-power LEDs (HPLED) can be driven at currents from hundreds of mA to more than an ampere, compared with the tens of mA for other LEDs. Some can emit over a thousand lumens. Since overheating is destructive, the HPLEDs must be mounted on a heat sink to allow for heat dissipation. If the heat from a HPLED is not removed, the device will fail in seconds. One HPLED can often replace an incandescent bulb in a flashlight or be set in an array to form a powerful LED Lamp.