What are LED Lamps???

by planetbulb on May 18, 2012

LED- Light Emitting Diodes

An LED lamp (LED light bulb) is a solid-state lamp that uses light-emitting diodes (LEDs) as the source of light.

3 types of LEDs:

  1. Conventional semiconductor light-emitting diodes
  2. Organic light-emitting diodes (OLED)
  3. Polymer light-emitting diodes (PLED)

LED Lamps are Interchangeable

LED lamps can replace incandescent or fluorescent lamps because they are made with identical bases so they are directly interchangeable.  The diode technology improves lighting steadily.

LEDs Offer Higher Luminous Efficancy

Since the luminous efficacy (amount of visible light produced per unit of electrical power input) varies widely between LED and incandescent lamps, lamps are usefully marked with their lumen output to allow comparison with other types of lamps. LED lamps are sometimes marked to show the watt rating of an incandescent lamp with approximately the same lumen output, for consumer reference in purchasing a lamp that will provide a similar level of illumination.

Efficiency of LED devices continues to improve.  LEDs do not emit light in all directions, and their directional characteristics affect the design of lamps. The efficiency of conversion from electric power to light is generally higher than with incandescent lamps. Since the light output of many types of light-emitting diodes is small compared to incandescent and compact fluorescent lamps, in most applications multiple diodes are assembled.

LED lamps offer long service life and high energy efficiency, but initial costs are higher than those of fluorescent and incandescent lamps.

More information on LEDs Available at http://en.wikipedia.org/wiki/LED_lamp

Check out the large selection of LED Lamps for sale at Planet Bulb!

A Shaped LEDs    Globe LEDs    Candle LEDs    Elevator LEDs    S14 LEDs    Night Light LEDs    T8 LEDs

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