LED stands for Light Emitting Diode.
What
is a Light Emitting Diode (LED)?
A light-emitting diode is a semiconductor device that emits
visible light when an electric current passes through it.
Why
choose an LED Sign over another form of signage?
People are more likely to read an LED Sign over other forms of
signage because they are conditioned to expect important information such as
traffic conditions, flight and train schedules on LED Signs.
Are LED
Sign expensive to run?
No. LEDs consume substantially less power than fluorescent and
incandescent light sources. LED technology is also highly reliable, long
lasting and requires minimum maintenance. In addition, if you select Solar Power + Control Unit, then it will cost you nothing in long run.
How
long will LED Signs last for?
A good
quality LED Signs could run for up to 100,000 hours. However, it is important
to understand that the 100,000 hour lifetime for an LED Sign refers to the time
it takes for an LED chip to reduce in brightness by 50%. LED Signs do have long
life spans, but for a chip to last 100,000 hours everything from the quality of
the componentry, the drive current, assembly, ambient temperature and junction
temperature needs to be faultless.
Therefore, we will assume that in between 50,000 to 30,000 hours in average lasting is pretty reasonable rate for a good quality LED pinpoint.
Let's take a simple calculation: If you run 24 hours a day, 365 days(1 year) = 8,760 hours.
What
is ambient temperature?
Ambient temperature refers to the temperature in a room, or
surrounding an object under discussion. In an LED sign the ambient temperature
is the temperature within the cabinet and should be controlled using
temperature sensing technology.
What
is junction temperature?
Junction temperature is the temperature at the point where an
individual diode connects to its base. Maintaining the correct junction
temperature is important to the longevity of an LED display.
What
is the difference between an indoor and an outdoor LED sign?
The LED-Signs' range of outdoor displays have a
IP68 rating and are fully waterproof, can withstand harsh temperatures
and dusty environments and are designed with a brightness level suitable for
reading in direct sunlight.
Indoor signs incorporate brightness levels that suit indoor ambient
light levels.
What
is the maximum distance I can read a LED sign from?
This will depend on application, but as a rough guidelines, having
the text height equates to the viewing distance in meters. EX: 140mm text height is suitable for viewing in 70m. Indoor signs have
a greater distance.
