Light emitting diodes are designed to release energy
form of photons (the most basic unit of light) in large
quantities and from only one side.
Electrical energy flowing into a light emitting diode
the energy of many of the electrons in the diode momentarily.
When these electrons lose this energy, photons are
The emitted photons bounce off the side of the plastic
and pass through the lens.
LEDs have no filament that needs to be heated to produce
light so they use less energy. LED lamps are also cool
they last a very long time.
Other sources of light (incandescent, fluorescent,
pressure sodium and metal halide lamps) have filaments
that need to be heated for the lamp to start or operate.
LEDs can be made with different lenses to focus the
either a narrow or a wide beam.
LED lights are especially advantageous where existing
light sources are:
High or not easily reached.
In locations where there are heavy
In cold temperature areas.