%20can%20be%20driven%20at%20currents%20from%20hundreds%20of%20mA%20to%20more%20than%20an%20ampere,%20compared%20with%20the%20tens%20of%20mA%20for%20other%20LEDs.%20Some%20can%20emit%20over%20a%20thousand%20lumens.%20Since%20overheating%20is%20destructive,%20the%20HPLEDs%20must%20be%20mounted%20on%20a%20heat%20sink%20to%20allow%20for%20heat%20dissipation.%20If%20the%20heat%20from%20a%20HPLED%20is%20not%20removed,%20the%20device...){kind=link}
Something about LED Strip,You might be interested
Something about LED Strip,You might be interested
High power
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 torch, or be set in an array to form a powerful LED lamp.where to buy cheap LED Strip? Lightereryday is a good choice.
Some well-known HPLEDs in this category are the Lumileds Rebel Led, Osram Opto Semiconductors Golden Dragon and Cree X-lamp. As of September 2009 some HPLEDs manufactured by Cree Inc. now exceed 105 lm/W (e.g. the XLamp XP-G LED chip emitting Cool White light) and are being sold in lamps intended to replace incandescent, halogen, and even fluorescent lights, as LEDs grow more cost competitive.
LEDs have been developed by Seoul Semiconductor that can operate on AC power without the need for a DC converter. For each half cycle, part of the LED emits light and part is dark, and this is reversed during the next half cycle. The efficacy of this type of HPLED is typically 40 lm/W. A large number of LED elements in series may be able to operate directly from line voltage. In 2009 Seoul Semiconductor released a high DC voltage capable of being driven from AC power with a simple controlling circuit. The low power dissipation of these LEDs affords them more flexibility than the original AC LED design.
Application-specific variations recommend directory: LED Strip Dimmer.
Flashing LEDs are used as attention seeking indicators without requiring external electronics. Flashing LEDs resemble standard LEDs but they contain an integrated multivibrator circuit which causes the LED to flash with a typical period of one second. In diffused lens LEDs this is visible as a small black dot. Most flashing LEDs emit light of one color, but more sophisticated devices can flash between multiple colors and even fade through a color sequence using RGB color mixing.
Bi-color LEDs are actually two different LEDs in one case. They consist of two dies connected to the same two leads antiparallel to each other. Current flow in one direction emits one color, and current in the opposite direction emits the other color. Alternating the two colors with sufficient frequency causes the appearance of a blended third color. For example, a red/green LED operated in this fashion will color blend to emit a yellow appearance.
Tri-color LEDs are two LEDs in one case, but the two LEDs are connected to separate leads so that the two LEDs can be controlled independently and lit simultaneously. A three-lead arrangement is typical with one common lead (anode or cathode).
RGB LEDs contain red, green and blue emitters, generally using a four-wire connection with one common lead (anode or cathode). These LEDs can have either common positive or common negative leads. Others however, have only two leads (positive and negative) and have a built in tiny electronic control unit.
Alphanumeric LED displays are available in seven-segment and starburst format. Seven-segment displays handle all numbers and a limited set of letters. Starburst displays can display all letters. Seven-segment LED displays were in widespread use in the 1970s and 1980s, but rising use of liquid crystal displays, with their lower power needs and greater display flexibility, has reduced the popularity of numeric and alphanumeric LED displays. recommend directory: 4 Keys RGB RF Controller. Considerations for use about LED Strip Your Trip Down Below Where To Go In Australia With Much less Money Destinations Well-liked For Air Travelers Celebrities Walk Out In Tutus The Natural Gardening Review-Create Your Garden Paradise by Lisa Bell What Can a Country Do to Minimize the Negative Effects of High Crude Prices? Explore Incredible India with India Tour Packages Make your Holiday Stay in Paris Apartments More Rewarding- Go Get a Museum Pass Vancouver Sightseeing - Enjoy a Day Trip on BC Ferries Between Vancouver and Victoria BC Cheap Tickets for Your Trip Pregnancy Travel Insurance: Feel Free to Travel While Pregnant Dive Into The Soul Of India With Golden Triangle Tours