The LED street lighting is an integrated light-emitting
diode (LED) light fixture that is used for street
lighting.
Advantages of LED Street Lighting
- Low energy consumption: The much lower energy usage of
LED Street Lighting can dramatically reduce operating costs.
- Long and predictable lifetime: The lifetime of LED
Street Lighting is usually 10 to 15 years, three times the life of
current technologies adopted. The much less frequent need to
service or replace LEDs means lower 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.
Improved color rendering makes it easier for drivers to recognize
potential road hazards.
- Quick turn on and off: Unlike fluorescent lamps, which
take time to heat up once switched on, LED Street Lighting comes on
with full brightness instantly. Unlike mercury vapor, metal halide
and sodium vapor lamps (commonly used in street lighting), LED
Street Lighting do not have a problem restarting immediately (hot
ignition) following a brief power failure or inadvertent turn off.
- RoHS compliance: LED Street Lightings 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.
- Optically efficient lighting equipment: Other types of
street lights use a reflector to capture the light emitted upwards
from the lamp. Even under the best of conditions, the reflector
absorbs some of the light. Also for fluorescent lamps and other
lamps with phosphor coated bulbs, the bulb itself absorbs some of
the light directed back down by the reflector. The glass cover,
called a refractor, helps project the light down on the street in a
desired pattern but some light is wasted by being directed up to
the sky (light pollution). LED Street Lighting assemblies (panels)
do not require reflectors and can be designed to provide the
desired coverage without a refractor.
- Reduced glare: Directing the light downward onto the
roadway reduces the amount of light that is directed into driver's
eyes.
- 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. 
Relying on older, less energy efficient lamp technology, street
lighting can consume as much as 40% of a city?s overall energy
budget. By combining more efficient LED street lighting and
networking, ATG iBright? LED street lighting yields significant
energy and operational savings.
LED street lighting
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