Sage-Tips

What is a LED and how does it work?

An LED bulb produces light by passing the electric current through a semiconducting material—the diode—which then emits photons (light) through the principle of electroluminescence. Don’t let that big word scare you! The electrical resistance of the filament causes it to get so hot that it glows, producing light.

What is the purpose of an LED?

Compared with conventional light sources that first convert electrical energy into heat, and then into light, LEDs (Light Emitting Diodes) convert electrical energy directly into light, delivering efficient light generation with little-wasted electricity.

What devices use LEDs?

Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even full-colour posters.

What advantages do LEDs have?

LEDs are extremely energy efficient and consume up to 90\% less power than incandescent bulbs. Since LEDs use only a fraction of the energy of an incandescent light bulb there is a dramatic decrease in power costs. Also, money and energy is saved in maintenance and replacement costs due to the long LED lifespan.

What are the dangers of LED lights?

LEDs emit nonanalog light that typically has excessive blue frequencies.

When using LEDs,you might end up with increased cellular damage and decreased repair and regeneration

You have cells in your retina responsible for producing melatonin,which regenerates the retina during the night.

What are the disadvantages of LED lights?

Disadvantages of LED Light Bulbs Perhaps the main disadvantage of LEDs is their cost. Because the technology is fairly young the initial cost to transition from conventional lighting to LEDs is much more than switching to CFLs . Another disadvantage is that LEDs are directional.

What is a led, and how does it produce light?

A light-emitting diode ( LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.

Do LED lights produce more light?

LED lighting products produce light up to 90\% more efficiently than incandescent light bulbs. How do they work? An electrical current passes through a microchip, which illuminates the tiny light sources we call LEDs and the result is visible light.