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FAQ About Leds

Posted on May 1, 2014 by Chris

FAQ About LED's

What is the difference between an incandescent bulb and an LED?

Incandescent create light by use of a filament. When power is applied, the filament glows, generating heat, in turn, producing light. LED's are the opposite. LED's create light though a "cold process", when power is applied to semiconductors (usually gallium, arsenic and phosphorus) they're stimulated by the movement of electrons; thus creating photons, the light that is visibly seen by humans.

Why do LED's use such little power?

LED's do not use a filament where a conductor is heated and light is created. Filament based lighting consumes more power than the light produced. LED's produce very little amounts of heat and do not use filaments making them far more efficient in consumption and output

How long do LED's last?

LED's are rated by manufacturers to operate under normal conditions for approximately 10 years or 100,000 hours of continuous use. As LED's get older, they tend to dim and fade but aren't susceptible to blinking like incandescent or fluorescent.

What do "cool white" and "warm white" mean?

The Color Correlated Temperature (CCT) is given in the description of each of our white LED bulbs. The color (CCT) of our white bulbs ranges from a warm yellow (2700K) to a cool blue white (7000K).
By comparison, a typical incandescent bulb has a CCT of 2800K. A typical halogen is a bit higher, maybe 3500K. Daylight white is 4500K and a cool white fluorescent is 6000K or more.
The human eye adapts to background light so that even a daylight white bulb will look slightly blue in a room illuminated mainly with incandescent bulbs. Similarly, an incandescent bulb will look very yellow in midday sunlight.

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