life span 100,000 hours
LED materials technical information issued by manufacturers of LED light indicates that life is 100,000 hours under ideal conditions. Ideal means in the laboratory constant voltage constant current LED light does not emit light from the light to full time, 100,000 hours equivalent to 11 years.
How much a barrel of water is determined by the lowest board, led display item-level people currently using the device, the service life of not more than 8 years. Function is viewed as a display, when the display is lit only at night to see that it is impossible to be qualified, with use value.
A car can be opened for 15 years, if idle for three years, then scrapped. And methods of using the environment a great impact on the life of the product.
Two, to comply with GB
led display the general specifications for the 1995 ministerial standards. There are many companies known as the national standard, the technology developed eight years after the standard look, is not the standard it. For example, control points, GB is ten thousandths to φ3.75 indoor dual color display as an example. Generally do standard 640x480 resolution screen is 7 square meters per square meter to 43,264 points, according to GB can have 90 control points. Such display today Who pay.
Third, the software all free
Display industry, the common problem of widespread Chinese companies - not only the production research and development. Only a few companies have licensed software. Now use piracy is illegal.
Fourth, low prices
Depends on cost performance rather than simply look at the price.
Fifth V. gradation
As a dual color and full color display is an important indicator of the gray. Currently the market is flooded with a lot of 16-and 64 grayscale display posing 256 shades of gray. The cost is only 256 gray scale control of 1/5. The easiest way is to play a more intense exercise scenes VCD view led display is able to see clearly.
Sixth, we should buy the best
Everything from purchasing power needed to meet the needs and have some advance. Blind pursuit will waste a lot of money to buy their own unwanted features