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  • Release time: 2018 - 10 - 31
    Size400mmX400mmX80mmWeight4.2kg(/Plastic door/Not include suite )MaterialAluminumSingle cabinet suite numberNine modules per cabinetInstallationCrane girder hoisting and fixed installationColorBlack Cabinet 、Black 、blue and orange DoorWorking environmentBoth Indoor or OutdoorStandard accessories1 door 、2 positioning pins、1 electrical installation board、receive the card board、2 Connection pieces、3 quick lock
    Dimension400mmX400mmX80mmBox weight4.2kgTexture of materialAluminumUse environmentBoth indoor and outdoor.
  • Release time: 2018 - 10 - 31
    Size400mmX400mmX80mmWeight4.2kg(/Plastic door/Not include suite )MaterialAluminumSingle cabinet suite numberNine modules per cabinetInstallationCrane girder hoisting and fixed installationColorBlack Cabinet 、Black 、blue and orange DoorWorking environmentBoth Indoor or OutdoorStandard accessories1 door 、2 positioning pins、1 electrical installation board、receive the card board、2 Connection pieces、3 quick lock
    Dimension400mmX400mmX80mmBox weight4.2kgTexture of materialAluminumUse environmentBoth indoor and outdoor.
  • Release time: 2018 - 10 - 31
    Size400mmX400mmX80mmWeight4.2kg(/Plastic door/Not include suite )MaterialAluminumSingle cabinet suite numberNine modules per cabinetInstallationCrane girder hoisting and fixed installationColorBlack Cabinet 、Black 、blue and orange DoorWorking environmentBoth Indoor or OutdoorStandard accessories1 door 、2 positioning pins、1 electrical installation board、receive the card board、2 Connection pieces、3 quick lock
    Dimension400mmX400mmX80mmBox weight4.2kgTexture of materialAluminumUse environmentBoth indoor and outdoor.
  • Release time: 2018 - 10 - 31
    Module specificationCustomizableMaterial, size, colorCustomizableInstallation modeFast fixed installationScope of useIt can be used indoors and outdoors.
  • Release time: 2018 - 10 - 31
    Module specificationCustomizableMaterial, size, colorCustomizableInstallation modeFast fixed installationScope of useIt can be used indoors and outdoors.
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Common problems and solutions of light emitting words on LED display screen

date: 2018-10-22
Browse times: 1

1. The service life of LED is short: The theoretical service life of LED manufactured by regular manufacturers is generally about 80,000 hours. Now many light-emitting words are not enough for a year to start replacing the LED module frequently, which brings a lot of trouble and economic losses to customers and advertisers.


Solution: Purchase qualified single LED lamp produced by regular manufacturers (requiring specifications of quality parameters provided by manufacturers), and make their own modules. Never buy a single LED lamp or a module that has been made cheaply in the electronic display market. If you need to buy a module, you should see that several resistors are installed on the module, and the module with one resistor is better not to use. Resistance in the module plays a current limiting role, it is easy to heat. If the resistance burns out, the module will not light up after long continuous use.  LED lights generally do not break. Don't throw away the module, just replace a resistance with the same resistance value to use normally. This will save the production unit money. In order to reduce trouble and save money, it is better to choose a module with two resistors. In addition, we should know about the production facilities of the suppliers who make the modules, and see if they adopt anti-static facilities when making the modules. Without additional anti-static facilities, even if the resistance is not burnt out in use, the LED lamp is easily broken down and damaged.


2. The color decay is very fast: the color of the newly installed luminous words is pure and bright, and the color will fade obviously in less than a year. Make the font red, green and not green is very ugly.


Solution: The safe current of the LED lamp is generally 20 mA. Over this value, although the brightness will increase a little, the color attenuation will obviously accelerate. Therefore, when purchasing the assembled LED module, it is necessary to test its output current value. The brightness below 20 mA is not enough. Over 22 mA affects the lifetime of LED and accelerates the color attenuation.


3. The color is uneven and the color difference is obvious. It is mainly reflected in the larger luminous words made by pure white LED. When assembled, the performance of a single module is not obvious. When the whole font is assembled completely, the color difference is obvious. The whole literal image is like a map, white, blue and yellow.


Solution: White LED lights must be spectrophotometric before they leave the factory (some of the light emitted by non-spectrophotometric LEDs is pure white, some are bluish, and some are yellowish). Spectrophotometer is expensive. The general small factory does not have this kind of equipment, so the white light produced is usually taken to the big factory for spectrophotometric separation. It is not the product of our own factory, so the spectrophotometry and color separation will not be so careful. Some small factories simply do not separate the light from the colour. They usually pull customers at low prices. Therefore, when buying white LED, do not blindly greed cheap, must buy the same manufacturer, the same batch, the same color number of LED light emitting tube single particle lamp or module to produce the same batch of light emitting words.


4. Some strokes or the whole of the font suddenly do not shine or when it is bright: after a period of time, the light source of the part or the whole font begins to flicker, when it is bright, until it is completely not bright. At present, most of the luminous modules sold in the market are connected by plug-in wiring. In this way, advertisers can install light-emitting modules quickly and conveniently. However, some new problems have arisen, because the connectors are easily oxidized by moisture in the air during long-term use, resulting in poor contact, instantaneous or complete power failure of part or all of the circuits, leading to flashing or not bright font light source.


Solution: a. When making the module, no plug-in is needed. It is directly connected with copper-tin-plated wire and soldered with activated carbon. B. Use artificial agate to make full-enclosed hollow stereoluminescent characters to isolate the light source from the air.


5. The output power of font is large, and the power saving and energy saving are not obvious.


Solution: Try to use a set of five lights LED module, so that the number of lights has not changed, and the power is reduced by two fifths.


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