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•  Work Principle 

         To assure the LED goods intact, we use shockproof packages and carry them cautiously.

Usage Considerations of LED Display

1.Switching sequence

   1) screen switching sequence:

     on: first turn on the computer, then screen

     off: first shut off screen, then computer.

   2) Interval of switching LED display must be greater than 1 minute.

2. Ambient temperature

    When ambient temperature is too high or cooling condition is bad, users had better not to turn on the screen for a long time.

   Screen shall be installed in temperature from-10 °C to 40 °C.Over environment temperature range, temperature control equipment must be installed.

   It is forbidden to install LED display near any heat source.

3.Ambient humidity

    When installing screen, ambient relative humidity should be in the range from  30% to 70%.It is prone to get static electricity when the indoor humidity is below 30%;

    when the indoor humidity is higher than 70%, electronic components are easy to get damp. 

4.Corrosive gas environment

    Please do not install the display in corrosive gas environment containing acid or base components, such as chemical warehouse.

5. Electromagnetic radiation environment

    Please do not install display when electromagnetic radiation and radio frequency radiation environment is over field strength 5V/m.

    If necessary, isolation treatment should be taken.

6.Steady power supply

    If necessary, users have to install surge switches in the distribution box and ground fault protection to avoid lightning strikes.

    Do not use the display in strong lightning and other severe weather.

7. Conductive material is strictly prohibited to contact display, such as metal dust and water.

    Screens are placed in the environment of low dust as far as possible, otherwise it will affect the display effects, as well as damage the circuit.

    If exposed to water for various reasons, please immediately power down until the screen unit dry.

8.Controlling colors

    Do not display a long time in a white, red, green, blue or other bright screen, because this will affect the display lifetime.

9.Controlling time

    LED display at least rest 2 hours a day. Normally turn on the screen at least twice a week or more (Especially in the rainy season it is necessary to turn on the display every day).

    And it maintains more than 2 hours every time.

10.Regular overhaul

    LED display requires regular inspection to check circuit damage. If it does not work, change it in time. If  circuit damages, it should be repaired or replaced.

11.Security alerts

    Users must ensure safety while installing Led display.  The factory only offers products and reference programs of frame fixation.

    Users can ask relevant authorities to confirm according to local conditions and field condition

Jiangsu JD Electronics Co., Ltd. was founded in June 2002 of which headquarter is located in Yizheng High-tech Development Zone of Yangzhou.

It includes manufacturing center – Jiangsu JD Electronics, marketing center – Yangzhou JD Electronics, R&D center – Nanjing JD Electronics.

      JD specialized in LED display and LED lighting. From manufacturing, R&D to engineering installation, we provide one-stop service. At present,

annual production of LED display module amounts to 300 thousand and LED lighting module amounts 1 million pieces. We are members of Display

Branch of China Photoelectricity Institution and Nanjing Lighting Institution.Our products have obtained silver medal of Chinese Famous Brand Exposition,

Jiangsu Province Famous Brand Product and Yangzhou Famous Brand. And our company has passed ISO9001-2008 quality system certificate; products

have passed CCC, CE, RoHS, UC certificate.

     JD  has won wide trust and good repute due to its stable quality, reasonable price and professional service. In the path of development,

we have realized that it is important to regard customer as the center. We will as always carry on the spirit of enterprise- dedication, teamwork, innovation.
Welcome to JD electronics!