LED corn light
The led corn light ( also know as LED corn light bulb, LED corn bulb, led corn lamp, LED corn cob lamp) is an integrated is
an integrated light-emitting diode (LED) light fixture.
LED corn light are manufactured in a wide range of sizes, light output, and voltage rating. From 12Vots to about 300 volts.
They require no external regulating equipment, have low energy cost, and work equally well on either alternating current
or direct current. As a result, the led corn light lamp is wide used in household and commercial lighting even industrial
lighting such as street light, garden light, high bay light, ceiling light and canopy light.
LED corn light used as walkway lighting, high bay lighting, street/road lighting, canopy lighting
Different designs have been created that incorporate various type of LEDs in to a light fixture. Heat sinks for LED corn light
are similar in design to heat sinks used to cool other electronics such as computers. Heat sinks tend to have as many
grooves as possible to facilitate the flow of hot air away from the LEDs, cooling fan speed up LED heat dissipation. The
area of heat exchange will directly affect the lifespan of the LED corn light.
The lifespan of an LED corn light is determined by its light output compared to its original design specification. Once its
brightness decreases by 30 percent, an LED corn light is considered to be at the end of its life.
Energy efficiency
The primary appeal of LED corn light is energy efficiency compared to conventional industrial lighting fixture technologies
such as metal halide(MH) and high pressure sodium (HPS); or commercial lighting fixture such as compact fluorescent
light bulbs (CFL) . Research continues toimprove the efficiency of newer models. One such advance can be found in a
industrial lighting product created by TEK Lighting technology.
One model of LED corn lights produced by this group is up to 65 percent more efficient than previous models, lasts for 10
years.
| Comparison | ||||
| Incandescent | Halogen | Fluorescent | TEK LED corn Light | |
| Electricity usage | 60W | 42W | 13W | 6W |
| Lumens | 850lm | 570lm | 660lm | 600lm |
| Lumens/Watt | 14.3lm/Watt | 13.6lm/Watt | 50.8lm/Watt | >100lm/Watt |
| Color Temperature Kelvin | 2700K | 3100K | 2700K | 3000K |
| Lifespan (hours) | 2000 | 3500 | 8000 | 50,000 |
An LED corn light can normally produce the same amount of (or higher) luminance as a traditional light, but requires only
less than half of the power consumption. LED lighting does not typically fail, but instead decreases in output until it needs
to be replaced.
As the LED lighting fixtures normally produce less lumen/Watt illumination it is very crucial to have a well distributed
illumination pattern in order to do the same job as higher lumen/Watt conventional fixtures. So a good design of LED
corn lights is to point different LEDs in one fixture to different target points.
LED corn light Advantages
· Low power consumption and long and predictable lifetime: The lifetime of LED corn lights is usually 8
to 12 years, three times the life of current technologies adopted. The much less frequent need to service
or replace LEDs means low maintenance cost.
· More accurate color rendering: The color rendering index is the ability of a light source to correctly reproduce
the colors of the objects in comparison to an ideal light source.
· Quick turn on and off: Unlike fluorescent lamps, which take time to heat up once switched on, LEDs come
on with full brightness instantly. Unlike mercury vapor, metal halide and sodium vapor lamps (commonly
used in industrial lighting), LEDs do not have a problem restarting immediately (hot ignition) following a
brief power failure or inadvertent turn off.
· RoHS compliance: LEDs don't contain mercury or lead, and don't release poisonous gases if damaged.
· Less attractive to nocturnal insects: Nocturnal insects are attracted to ultraviolet, blue and green light
emitted by conventional light sources.
· Fewer electrical losses: All other types of lighting (except incandescent) require ballasts, additional electronic
and/or electromagnetic components, in which some power is consumed.
· Higher light output even at low temperatures: While fluorescent lights are comparably energy efficient, on
average they tend to have lesser light output at winter temperatures.
LED Corn Light Lamp bases
Today LED corn light lamps for general lighting service use an Edison screw to replacing traditional
incandescent lamp.
· Intermediate: E14 (Small ES, SES) in Europe
· Medium or standard: E26 (MES) in North America, E27 (ES) in Europe
· G24 & GX24 CFL PL 2pin & 4pin
· B22 Bayonet mount: The bayonet light bulb mount is the standard fitting in many former members of
the British Empire including the United Kingdom,Australia, India, Ireland, and New Zealand, as well as
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