led (elec eng world.blogspot.com)
TRANSCRIPT
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LED))DiodeEmittingLight
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LEDLight Emitting Diode
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Technical data
LED is Light Emitting Diode
LEDs must be connected in the correct way,the diagram may be labelled+ for anode- for cathode.LEDs is the future of the lighting field.
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Advantages
1- Economy.The use of LED lighting can offer significant cost saving over timebecause LEDs run on low current & low voltage and efficientlyconvert electricity into light.Also require less energy to manufacture than other light sources.
70 lumens perwatt
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15x75w -------------------- 1125 lm 70x75w -------------------- 5250 lm
70 lumens perwatt
Efficacy of LED
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50 watt halogenspot
18 watt LED spot
QTY: 249 spot
Total power:13668 W
QTY: 249 spot
Total power :4920W
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2- Environmentally friendly (green products).Low energy than standard bulb.No ultra- violet.No Infrared
3- Improved safety & security.Low heat generation that reducing the load on the air condition.Low voltage so it is safety with children's & also eliminates sparks.
Low voltage
Low
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4- Long life span.With an expected life span from 50.000 hr to
100.000 hr (approximately from 6 to 11 yearsfor continuous use)
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5- Compact size.Typical package is only 5 mmin diameter so we can arrangeinfinite number to create therequired design (all shapes arepossible).Design flexibility.
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6- A range of colors.LED produce high puritycolored light that can be mixedto create millions of colors
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7- Instant starting.
Perfect in application that Ineed instant starting & restarting fixtures like homeapplications & traffic systems
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7- Instant starting.
Perfect in application that Ineed instant starting & restarting fixtures like homeapplications & traffic systems
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8- Vibration resistance.LED fixtures not affected byvibrations so it is perfect in trafficsystems.
9- Shown during the day & at night.
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10- LEDs are produced in a variety of shapes and sizes.
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LEDZ technology
Conventional lighting plan LED lighting plan
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Conventional lampsreplacement by LED
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7W
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11W
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TC-DEL 18 watt
Power consumption
45%down R5 11 watt
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14W
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TC-TEL 26 watt
Power consumption
48%down R7 14 watt
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18W
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Halogen lamp50 watt
Power consumption
64%down R9 18 watt
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23W
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TC-DEL 2 x 26 watt54 watt
Power consumption
57%down R12 23 watt
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34W
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TC-TEL 2 x 32 watt70 watt
Power consumption
51%down R18 34 watt
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44W
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HIT 70 watt80 watt
Power consumption
45%down R24 44 watt
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56W
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Power consumption
38%down R30 56 wattTC-TEL 2 x 42 watt
90 watt
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66W
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Power consumption
61%down R36 66 wattHIT 150watt
170 watt