It would actually be easier to list the similarities between them:
They both convert electricity into visible light.
That's pretty much it. Everything else about them is completely different.
Halogen light glows and LED is dull.
a normal light bulb gives off more light
The main difference is how light is produced in each. In a LED, a device known as a light-emitting diode produces light when receiving a certain level of current. In an incandescent bulb, a thin piece of conductive metal glows brightly (incandesces) when subjected to a current in an oxygen free environment, such as a vacuum or near-vacuum (the absence of oxygen keeps the metal from burning and decomposing). Finally, a fluorescent bulb works by subjecting a special mixture of gases to an electric current. The current excites molecules of gas, which release light in the process.
a regular light bulb emits about 80% heat energy and only 20% light energy, whereas leds emit about 70 % light and 30% heat
1. Incandescent light bulb 2. Halogen light bulb 3. Compact fluorescent light bulb 4. Light emitting diode (LED) 5. Mercury vapor light bulb 6. Neon light 7. High intensity discharge lamps 8. Carbon arc lamp 9. laser 10. kerosene lamp
There's not much of a difference, the quality really depends on the brand. The biggest difference between LED and LCD is that LCD has fluorescent lamps in it and LED has LED lights in the back of the screen.
yes
They are actually quite similar. LED televisions are actually just LCD televisions that use LED lighting for the back light instead of the traditional fluorescent CFL lighting. http://lcdtvbuyingguide.com/HDTV/led-vs-lcd.html
Halogen light glows and LED is dull.
* Incandescent * Fluorescent * LED (light emitting diode)
No, the fixtures do not have anything is common other that emitting light. If you are talking about removing the fluorescent fixture and installing a new fixture that can take a LED lamp then the answer is yes.
There are two different technologies, fluorescent, and LEDs. Fluorescent light bulbs are more common; LEDs are still too expensive for mainstream use. +++ LED lamps' prices are now very competitive, certainly where I live, and make up for the unit price difference in reduced electricity consumption for a given light output. I have a mixture of incandescent, CF and LED lamps in my home, and slowly going over to LED as the existing lamps expire.
The Simplest Difference is that LED emits Light, & Photodiode converts Light energy into electrical Energy
a normal light bulb gives off more light
There are two different technologies, fluorescent, and LEDs. Fluorescent light bulbs are more common; LEDs are still too expensive for mainstream use. +++ LED lamps' prices are now very competitive, certainly where I live, and make up for the unit price difference in reduced electricity consumption for a given light output. I have a mixture of incandescent, CF and LED lamps in my home, and slowly going over to LED as the existing lamps expire.
They both only allow current in one direction, but the LED emits light when current is flowing.
LED grow lights have a longer useful life than fluorescent lights, as long as 15 years for some fixtures, and thus a lower "total cost of ownership." The total cost of ownership includes the cost to buy the light, use it, and replace expired bulbs. One manufacturer estimates that the total cost of owning an LED grow light over five years is about half the cost of a comparable fluorescent lights.