Why Knowing The LED Density Is Important When Purchasing LED Signs?
Reason #1
LEDs have a unique degredation pattern. They lose approximately 20%
of their brightness in the first 2,000 hours of use. After that the loss
of brightness slows down to the point where they will last for
approximately 100,000 hours total. This is true for all LEDs, there is
no way around it, so don’t be fooled by talk of ‘special’ LEDs.
That means that Outdoor LED Signs which are rated at 5,000 NITs will drop to approximately 4,000 NITs in the first 3 months.
For those of you who do not know, a NIT is a measurement of
brightness, in North America the sun average sunlight is rated at
approximately 5,000 NITs. So, an LED sign must be at least that bright
to compete with direct sunlight. For the sake of comparison, a computer
monitor will range from 250-500 NITs which is why it is hard to see your
laptop screen outside during the day.
The more LEDs there are in each pixel, the higher the LED Density is, the brighter the sign will be.
It is better to have an LED Sign with a high LED Density. This will help to maintain the brightness level of your sign.
Reason #2
One way companies who use lower LED Densities compensate for this
lower brightness is to ‘overpower’ the LEDs. This means they put more
electricity into each LED to make it brighter. This increases the
degredation rate of the LEDs shortening their lifespan.
If an LED Sign has more LEDs in each pixel there will be no need to
overpower the LEDs which will not only reduce the amount of electricity
your sign uses but will help to preserve your LEDs and their brightness.
Conclusions
When you are shopping around to find LED Signs to invest in, make
sure you select one with a high LED Density. Also, make sure the sign
you are looking to investing in is rated at 5,000+ NITs. This will help
to protect your investment and insure you get the maximum benefit
possible for the entire life of your LED Signs.
VisionLED offer all range of different dot pitch for your choice, indoor led signs we have: pitch4mm,5mm,6mm,7.62mm,8mm,10mm. Outdoor led signs they are: 10mm,12.5mm,14mm,16mm,20mm,25mm,31.25mm.
Contact person: Serena Ye
