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Can the door head not be installed
Door head maintenance
Turn the lampshade counterclockwise, remove the lampshade, and then take out the annular tube. Most of the reason is that the ring tube is broken. Try a new one. If it still does not light up, replace the electronic ballast. Pay attention to turn off the switching power supply during actual operation. If you are not sure, you'd better find a master to install it.
Brief introduction of door head
Paint the door head. Its characteristics are low price, simple and fast manufacture, and its disadvantages are fast fading and short service life. Luminous door head. Its main features are energy saving, environmental protection, durability and high cost performance. Neon lights. Characterized by rich colors, the disadvantages are too fragile, not durable, not beautiful enough during the day, and the light decay is large.
Led color screen. Its characteristic is that it can display pictures, words, videos and other contents at night like ordinary signboards during the day, and its price is lower than that of LED display screen, so it is cost-effective.
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