Results for: Light-emitting-diode

28 Contributions

Answered

Advantages of light-emitting diode?

1- consumption of electricity is way less 2- last 10 to 20 times longer 3- heat emission is very low (less fire risk) ----------------------------------------------------… (MORE)

6 people found this useful

Jordan Young

17 Contributions

Answered

In Technology

What is voltage required for light emiting diode and the current consumption of light emiting diode?

Typically, about 12 volts DC is the maximum input for led stripes for lighting. If its in a controller or a computer it's typically 5 volts. By controlling the voltage you can… (MORE)

3 people found this useful

Steven Greenfield

11 Contributions

Answered

In Electronics Engineering

Does a semiconductor diode emit light when forward biased?

Not usually, unless you mean a LED. It depends of the kind of diodes. LEDs will emit light but not most regular diodes, though some may produce infrared light. In the case of… (MORE)

3 people found this useful

LIBURNO

2,996 Contributions

Answered

In Inventions

What is light-emitting diode used for?

To begin with is was to replace incandescent lamps as indicator. But nowadays it is used for myriads of uses from indicator to lamps fixture for your House there are also spec…ialty LEDS like ultraviolet and what not Home LED lighting is a cut above the rest when it comes to energy efficiency. As compared to incandescent lighting, LED lighting wins hands down where energy consumption is concerned. For every 60,000 hours of usage, incandescent lighting uses approximately 3,600 kWh of electricity where LED lighting uses 120 kWh. Bottom line: energy efficiency equals a significant cost savings. LED lighting gives off directional light. Therefore, it is useful as a source of light for reading or spotlighting in the home. Its powerful light output also makes it great for outdoor floodlighting and path illumination. LED bulbs are now available that can replace most halogen or fluorescent light bulbs used in the home. Although LED lighting may not be useful for all home lighting needs, replacing a few bulbs with LED bulbs would have a noticeable affect in the amount of electricity used. LED light displays are already used in signs and videos in many indoor and outdoor sporting events and concerts. LED video displays and signs are often preferred because of their higher brightness, which is critical when people are viewing a sign or video from a long distance. Added advantages of LED video displays are their capacity to incorporate curves and 3-D design. This makes LED video displays technologically superior to currently available large screen displays. Research and developers in the consumer electronics space are eager to take advantage of this overwhelmingly useful technology in future products. Other uses for LED lighting include LED flashlights and key chains, automobile taillights and interior lights, and LED based projection televisions. LED lighting is also being used in the military for LED flashlights that work with night-vision goggles, UV-LED canteen water treatment devices and the sterilization of surgical equipment. ANSWER NOT USED IN A HOME are kidding ? all my lighting inside and out is all LEDS never shut them off what for? saving is in the 98% replaced 3 60 watts lamps with 3 90 watts LED using total 10 watts Web Reference: http://www.solrient.com Source: http://www.articlesbase.com/computers-articles/led-lights-the-next-generation-of-home-and-outdoor-lighting-244636.html (MORE)

3 people found this useful

Alex kalotheou

7 Contributions

Answered

In Technology

How do you test a light emitting diode?

You can test it by puting it in forward bias with a resistor. Use a dc voltage source of 5 volts and put it in series with 250 Ohms resistor. Or use 9volts with a 450 Oh… (MORE)

11 people found this useful

Eccles-Jordan Trigger Circuit

152,645 Contributions

This circuit is used in most electronic digital computers ever built & was invented in 1918 (patent GB148582). What is it now called?

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In Technology

Why ordinary silicon diodes do not emit light?

Silicon is opaque to all light (IR through UV).The bandgap of silicon is not high enough to produce visible photons, only IR photons.

11 people found this useful

Answered

In Uncategorized

What is better the you phone 5c or 5s?

the 5s because it has better service but it dosent have diffrent colrs just silver gold and black

38 people found this useful

Answered

In Electronics Engineering

Why ordinary silicon diode does not emit light?

The energy band gap between the cathode and anode is too small to generate photons of higher energy than far IR.Silicon is opaque to visible light (and even IR).

Anand Mehta

249,893 Contributions

Statistician / Economist formerly employed in various Government Departments in the UK, freelance mathematics and statistics tutor since retiring in 2008, Fellow of the Royal Statistical Society.

Answered

In Math and Arithmetic

What is the answer to 20c plus 5 equals 5c plus 65?

20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4

Shaun marsh

636 Contributions

Answered

In Uncategorized

What is the principle of light-emitting diode?

A light-emitting diode (LED) is a two-lead semiconductor light source. It is a basic pn-junction diode, which emits light when activated. When a fitting voltage is applied… (MORE)