The operational lifetime of an LED Display is determined by the lifetime of the LEDs. LED Manufacturers estimate the LED lifetime to be 100,000 hours under certain operating conditions. LED Display end of lifetimes is when the frontal brightness has decreased to 50% of original brightness. Read More

Video can be described as display a moving image, which is made up of many individual frames played at a fast rate. Good video is played at 30 frames per second or higher. A slower rate can begin to look choppy and affect the presentation quality. Read More

Question 1, What’s the business of Hangel Technology?
Question 2, Are you manufacturer / factory or trading company?
Question 3, What benefits can your products bring to me?
Question 4, I’m a new comer to the product, is it easy to operate it?
Question 5, What’s the difference between you and other vendors of LED display?
Question 6, Why should I do the business with you, but not with other vendors?
Question 7, How is your product quality?
Question 8, What’s warranty on your products?
... Read More

01. The serial cable or USB cable is not connected to the sending card.
02. Computer COM or USB port is bad
03. Serial cable or USB cable is bad
04. Sending card is bad
05. No USB driver installed
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The first step:
Check that the graphics card settings are set up properly.
The second step:
Check the basic connection of the system, such as DVI line, correct network line socket, connection between main control card and PC PCI cable, serial line connection, etc. Read More