Posted by admin | Posted in Model Railway | Posted on 19-06-2008
Tags: diode, diy, electronics, led, light, light emitting diode, light emitting diode bulbs, light emitting diode circuit, light emitting diodes led, light emitting diodes leds, oled, organic light emitting diode
Looking For Emitting Diode ? Then This is Where You Want to Be
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 100 x 5mm Round LED Light DIP 2 Pin Red Emitting Diode $5.89 Time Remaining: 2h 4m Buy It Now for only: $5.89 |
 60 Pcs 5mm Diameter Straw Hat Red LED Emitting Diode $4.48 Time Remaining: 3h 9m Buy It Now for only: $4.48 |
 10pcs LENOO Infrared Emitting Diode LIR034 $1.50 Time Remaining: 4h 47m Buy It Now for only: $1.50 |
 100pcs LENOO Infrared Emitting Diode LIR034 $10.60 Time Remaining: 4h 55m Buy It Now for only: $10.60 |
 20 pcs Infrared LED Emitting Diode IR 5mm Free Ship $3.60 Time Remaining: 5h 27m Buy It Now for only: $3.60 |
 100PCS LED Light Emitting Diode 5MM Yellow 2000MCD 25 Degree $3.99 Time Remaining: 5h 34m Buy It Now for only: $3.99 |
 100PCS 2 PINS 3MM Round LED Light Emitting Diode Lamp $1.00 Time Remaining: 5h 35m Buy It Now for only: $1.00 |
 Lot 100 SIR 311 ROHM Infrared IR Emitting Diode LED $7.99 Time Remaining: 6h 26m Buy It Now for only: $7.99 |
 Lot 100 TSSP4400 Infrared 170mW LED IR Emitting Diode $10.99 Time Remaining: 6h 49m Buy It Now for only: $10.99 |
 50x3mm Round Purple LED Light 2 Pin DIP Emitting Diodes $4.22 Time Remaining: 7h 6m Buy It Now for only: $4.22 |
 100 x 5mm Round 2 Terminals Light Emitting Diode Purple $6.78 Time Remaining: 7h 57m Buy It Now for only: $6.78 |
 150 Pcs Through Hole 3mm Round LED Light Emitting Diode $6.99 Time Remaining: 9h 50m Buy It Now for only: $6.99 |
 100 Pcs 3mm Diameter Round LED Light Emitting Diode Lamp Red $7.18 Time Remaining: 10h 6m Buy It Now for only: $7.18 |
 75 x 3mm Round Red Grn Yellow LED Light Emitting Diodes $4.91 Time Remaining: 10h 10m Buy It Now for only: $4.91 |
 50 Pcs 8mm Straw Hat White LED Lights Emitting Diodes Lamps $9.13 Time Remaining: 11h 31m Buy It Now for only: $9.13 |
 100 3mm 2 Pins Round White LED Light Emitting Diode Lamp $7.37 Time Remaining: 11h 55m Buy It Now for only: $7.37 |
 100 x 5mm Head Purple LED Lamp DIP Light Emitting Diode $6.74 Time Remaining: 12h 34m Buy It Now for only: $6.74 |
 1000 PCS LOT Light Emitting Diode LEDs 5MM White Light $15.50 (17 Bids) Time Remaining: 12h 56m |
 100 pcs Light Emitting Diode LEDs 5mm White Light $4.25 (5 Bids) Time Remaining: 13h 6m |
 100 Pcs 3mm 2 Pins Round Green LED Light Emitting Diode Lamp $7.06 Time Remaining: 13h 53m Buy It Now for only: $7.06 |
 3mm Purple LED Light Through Hole Emitting Diode 50 Pcs $4.18 Time Remaining: 14h Buy It Now for only: $4.18 |
 100 Pcs 3mm 2 Pins Round Green LED Light Emitting Diode Lamp $7.20 Time Remaining: 14h 43m Buy It Now for only: $7.20 |
 3mm Assorted 3 Color LED Light Emitting Diodes 75 Pcs $4.96 Time Remaining: 14h 47m Buy It Now for only: $4.96 |
 100 x 5MM White Round LED Light Emitting Diodes $1.26 (4 Bids) Time Remaining: 15h 8m |
 50 x 3mm Round Purple LED Through Hole Emitting Diodes $4.03 Time Remaining: 15h 31m Buy It Now for only: $4.03 |
 1000 Pcs 2 Pin Red LED Emitting Diode Lamp 3mm Diameter $20.18 Time Remaining: 15h 35m Buy It Now for only: $20.18 |
 50 Pcs 5mm Dia Round Head 4 Pins RGB Light LED Emitting Diodes $12.19 Time Remaining: 15h 40m Buy It Now for only: $12.19 |
 1000 Pcs 3mm Dia White Light LED Lamp Emitting Diode $28.09 Time Remaining: 15h 45m Buy It Now for only: $28.09 |
 100pcs LED 5mm Red LEDs light emitting diode High quanlity $2.90 Time Remaining: 16h 32m Buy It Now for only: $2.90 |
 10pcs 3mm Round Green Emitting Diode Light Bulb Bright LED Lights $2.84 Time Remaining: 18h 42m Buy It Now for only: $2.84 |
 10pcs 3mm Round Red Emitting Diode Bulb Bright LED Lights $2.84 Time Remaining: 18h 42m Buy It Now for only: $2.84 |
 OPB818 Slotted Optical Switch IR Emitting Diode Phototransistor Qty 4 $19.99 Time Remaining: 20h 44m Buy It Now for only: $19.99 |
 100pcs 5mm White Round Emitting Diode LED Lights 15000MCD US POST $8.00 Time Remaining: 22h 38m Buy It Now for only: $8.00 |
 10 Infrared Emitting Emitter Light 8mm Led Diodes951 $68.00 Time Remaining: 23h 53m Buy It Now for only: $68.00 |
 13 Infrared Ray Emitting Emitter Light Led Diodes950 $12.99 Time Remaining: 1d 12m Buy It Now for only: $12.99 |
 100Infrared Ray Emitting Emitter Light Led Diodes950 $99.99 Time Remaining: 1d 14m Buy It Now for only: $99.99 |
 100 x 3mm Round 7 Color LED Light Lamp Emitting Diodes $6.12 Time Remaining: 1d 54m Buy It Now for only: $6.12 |
 100pcs 5mm F5 Red Round Emitting Diode LED Light lamp 620NM 20V DIY US POST $8.00 Time Remaining: 1d 1h 36m Buy It Now for only: $8.00 |
 100pcs 5mm F5 Blue 455nm 460nm Round Emitting Diode LED Light lamp US POST $8.00 Time Remaining: 1d 1h 45m Buy It Now for only: $8.00 |
 100pcs 5mm F5 Yellow Round Emitting Diode LED Light 589nm US POST $8.00 Time Remaining: 1d 1h 52m Buy It Now for only: $8.00 |
 3mm Round 2 Pin Purple LED Light Emitting Diodes 100Pcs $5.17 Time Remaining: 1d 1h 54m Buy It Now for only: $5.17 |
 100pcs 5mm F5 Green Round Emitting Diode LED Light Lamp US POST $8.00 Time Remaining: 1d 1h 56m Buy It Now for only: $8.00 |
 100pcs 5mm White Red Blue Green Yellow Round LED Light Bulb Emitting Diode Lamp $2.99 Time Remaining: 1d 3h 15m Buy It Now for only: $2.99 |
 50 x 3mm Round Purple LED Through Hole Emitting Diodes $4.23 Time Remaining: 1d 3h 35m Buy It Now for only: $4.23 |
 10 pcs 5mm Round 2 pins White LED Light Emitting DIODE Lamp 32V 18000mcd $2.91 Time Remaining: 1d 3h 48m Buy It Now for only: $2.91 |
 100 x 5mm Round Through Hole Light Green LED Emitting Diodes $6.62 Time Remaining: 1d 4h 52m Buy It Now for only: $6.62 |
 15 Pcs x Red LED 2 Terminals Light Lamp Emitting Diodes $3.70 Time Remaining: 1d 4h 59m Buy It Now for only: $3.70 |
 100 x 5mm Round Through Hole Light Red LED Emitting Diodes $5.89 Time Remaining: 1d 6h 29m Buy It Now for only: $5.89 |
 15 x LED Red 3mm Round Head DIP Light Emitting Diodes $3.53 Time Remaining: 1d 6h 45m Buy It Now for only: $3.53 |
 RadioShack 276 036 Red Blinking Light Emitting Diode $7.99 Time Remaining: 1d 6h 55m Buy It Now for only: $7.99 |
 100 x 5mm Round Through Hole Light Red LED Emitting Diodes $5.93 Time Remaining: 1d 7h 2m Buy It Now for only: $5.93 |
 INTRODUCTION TO LIGHT EMITTING DIODE TECHNOLOGY A GILBERT HELD HARDCOVER NEW $89.86 Time Remaining: 1d 9h 3m Buy It Now for only: $89.86 |
 75 x 3mm Round Red Grn Yellow LED Light Emitting Diodes $4.96 Time Remaining: 1d 9h 3m Buy It Now for only: $4.96 |
 20 x 3mm 2Pin Round White LED Light Emitting Diode Lamp $3.94 Time Remaining: 1d 11h 47m Buy It Now for only: $3.94 |
 10pcs 3mm Round 2pin Terminal Green Emitting Diode Bulb LED Light 05143 $3.29 Time Remaining: 1d 14h 46m Buy It Now for only: $3.29 |
 10pcs 3mm Round 2pin Terminal Red Emitting Diode Bulb LED Light Hi Q 5144 $3.29 Time Remaining: 1d 14h 46m Buy It Now for only: $3.29 |
 20 x White LED Lamp 3mm Head DIP Light Emitting Diodes $3.98 Time Remaining: 1d 15h 11m Buy It Now for only: $3.98 |
 150 1153 00 INFRARED EMITTING DIODE 2PIN HARD TO FIND $9.90 Time Remaining: 1d 16h 10m Buy It Now for only: $9.90 |
 100 x 5mm Round LED Light DIP 2 Pin Green Emitting Diode $6.43 Time Remaining: 1d 16h 13m Buy It Now for only: $6.43 |
 10 x 3mm 2Pin Round White LED Light Emitting Diode Lamp $3.70 Time Remaining: 1d 16h 43m Buy It Now for only: $3.70 |
 100pcs 5mm Super Bright Round 7 Colors Emitting Slowly Diode Bulbs LED Light $16.14 Time Remaining: 1d 18h 30m Buy It Now for only: $16.14 |
 100pcs 5mm Super Bright Round Red and Blue Emitting Diode Bulbs LED Light $10.44 Time Remaining: 1d 18h 34m Buy It Now for only: $10.44 |
 100pcs 5mm Super Bright Round 7 Colors Emitting Diode Bulbs LED Light $12.34 Time Remaining: 1d 18h 34m Buy It Now for only: $12.34 |
 10 x White LED Light Emitting DIODE 5mm Round Lamp 32V 18000mcd $3.87 Time Remaining: 1d 19h 18m Buy It Now for only: $3.87 |
 50 Pcs 5mm Straw Hat 2 Pin Yellow LED Light Emitting Diodes $7.58 Time Remaining: 1d 19h 25m Buy It Now for only: $7.58 |
 10 Pcs 3mm Round Head Blue LED Emitting Diode Light Lamp $7.07 Time Remaining: 1d 19h 29m Buy It Now for only: $7.07 |
 10 pcs 5mm Round 2 pins RED LED Light Emitting DIODE Lamp 22V 10000mcd $2.91 Time Remaining: 1d 19h 34m Buy It Now for only: $2.91 |
 10 x RED LED Light Emitting 5mm Round DIODE Lamp 22V 10000mcd $3.87 Time Remaining: 1d 19h 42m Buy It Now for only: $3.87 |
 10 pcs 5mm Round 2 pins GREEN LED Light Emitting DIODE Lamp 34V 14000mcd $2.91 Time Remaining: 1d 19h 54m Buy It Now for only: $2.91 |
 10 x GREEN LED Light Emitting 5mm Round DIODE Lamp 34V 14000mcd $3.87 Time Remaining: 1d 19h 59m Buy It Now for only: $3.87 |
 10 pcs 5mm Round 2 pins BLUE LED Light Emitting DIODE Lamp 32V 5000mcd $2.91 Time Remaining: 1d 20h 7m Buy It Now for only: $2.91 |
 10 pcs BLUE LED Light Emitting 5mm Round DIODE Lamp 32V 5000mcd $3.87 Time Remaining: 1d 20h 9m Buy It Now for only: $3.87 |
Modern Led Devices Vs. Traditional Light-emitting Sources
Light-emitting diodes (LEDs) represent various types of semiconductor devices that produce incoherent narrow-spectrum light fascicles when powered with a steady-state voltage electrical source, producing the effect known as electroluminescence. LEDs come in a wide variety of shapes, sizes and colors, nowadays serving for a multitude of purposes: illuminating traffic signals, railroad crossing signals and display panels, facilitating optical fiber communications, providing backlighting for LCD televisions and displays, being integrated in remote control and optical devices (infrared LEDs), or being used simply for decorative purposes (LEDs can emit light of various colors blue, green, yellow, orange, red and purple, to name only a few).
LED lights have come a long way, today's offer comprising highly reliable, durable and economical designs that can take various forms (LED bulbs, LED pods, LED tubes, LED displays, etc) and fulfill many different roles (functional or purely aesthetical).
LEDs are by far superior to traditional light sources such as incandescent light bulbs and fluorescent lamps, as they use less energy and produce less heat (unlike conventional light sources which consume a lot of electrical energy but transform only a fraction of the used energy into light, converting the rest of it into heat, LED lights are very economical, consuming less electrical energy and transforming a great part of it into light), have an impressively long life span (LED lights can last for more than 10 years), light up more quickly (in most cases LEDs can achieve full brightness in a matter of microseconds, compared to some fluorescent lamps that usually light up after 0,5 or 1 second and achieve full brightness in an average of 30 seconds) and can directly focus the light they emit (unlike incandescent and fluorescent light sources that generally include an external reflector that redirects the luminous rays in the desired direction).
Compared to conventional sources of light, LED bulbs and other similar LED devices can directly emit light of a certain color without the aid of color filters. Consequently, the colored light produced by LED bulbs is considerably brighter, clearer and more vivid, rendering colored-light producing LED bulbs the perfect devices for interior and exterior illumination of architectural structures, commercial panels and various decorative objects.
In addition, LED lights such as LED bulbs, LED pods and LED tubes don't burn out unexpectedly like incandescent bulbs; when they fail, LEDs tend to dim out gradually, continuing to fulfill their purpose even in the event of a malfunction. While traditional light sources are unreliable and sometimes even unsafe (incandescent bulbs can sometimes explode due to fluctuant voltage), LED lights are durable, reliable, safe and efficient. All the mentioned advantages of LEDs render such devices the perfect replacement for incandescent and fluorescent light sources and nowadays LED light sources are already extensively used in many different industrial branches.
The main disadvantage of LED light sources and the primary reason why such devices are still rarely used for domestic, private purposes is that they have an expensive character. Unlike the omnipresent incandescent light bulbs and fluorescent lamps, devices that are usually very cheap, most LED light sources (particularly those with a high luminosity index) are still unaffordable to some categories of persons. However, if you carefully establish a cost-benefits analysis, LEDs are a great choice and a wise investment for anyone, regardless of material condition. Compared to conventional light sources that have a low purchase price but consume lots of energy and need to be regularly replaced, LED light sources have a higher purchase price but last for many years and consume only a small fraction of the energy used by incandescent and fluorescent light devices. Thus, if you are looking for durable, reliable, energy-efficient light devices, LED light sources are by far the best choice.
So, if you want to find out more about LED lights or even about LED bulbs, you should visit these links.
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So, if you want to find out more about LED lights or even about LED bulbs, you should visit these links.