An LED bulb, also known as an LED lamp, is used for general-purpose lighting application. LED bulbs emit light in a very narrow band of wavelengths and come in a variety of technologies. One technology used for LED bulbs uses multiple LED chips in close proximity to generate light. The second technology uses LEDs with a phosphor.
What does LED stand for?
LED stands for Light-emitting diode. A light-emitting diode is a two-lead semiconductor light source. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons.
How does LED save energy?
LEDs produce brighter light using less energy so they last longer and require less maintenance. The typical lifetimes of LED bulbs are quoted to be 25,000 to 100,000 hours.
What types of LED bulbs are available?
LED bulbs can come in a variety of styles including A19 bulbs, G25 bulbs, BR/R bulbs, chandelier bulbs, MR16 bulbs, PAR bulbs, tubes, and downlights to meet every lighting need whether it be indoor, outdoor, commercial, or residential.
What are lumens?
Lumens are a measure of the luminous flux or quantity of light emitted by a source. The higher the lumen output the brighter the light. A bulb with a high lumen output and a low wattage is energy efficient.
What color temperature do I need?
Color temperatures range from warm white to cool white.
What is a beam angle?
The beam angle of an LED bulb is the angular dimension of the cone of light from the lamp. It encompasses the central part of the beam out to the angle where the intensity is 50 percent of maximum.
For most household ceiling fitted applications, a beam angle of 30 or 40 degrees would be sufficient. For outdoor applications, a wider beam angle of 60 to 120 degrees is preferred to cover a larger surface area.
What is the equivalent wattage to my fluorescent light?
|LEDs (Watts)||CFLs (Watts)|