First, the LED screen protection is reflected in the following aspects:
1. The LED large-screen screen system is externally decorated with high-quality aluminum-plastic composite board with excellent corrosion resistance and corrosion resistance. The joints between the plates are closely filled with high-quality weather-resistant glue.
2. In the LED large screen system, the pixels and modules are sealed with insulating rubber ring to prevent water from penetrating.
3. The joint between the embellishment and the module is filled with foam rods and filled with high-quality weather-resistant glue to prevent moisture from entering.
Second, the way to protect the LED large screen:
1. After 30,000 hours, the brightness of the screen is attenuated by about 15% (factory brightness). At this moment, the maximum brightness that the screen can reach is about 1500CD/m2. At this point, the maximum working brightness of the screen is 90-100%. ups and downs.
2. When the LED electronic display screen is shipped from the factory, the brightness of the screen is set to 2500CD/m2 or more. After the device is commissioned, the maximum working brightness of the full-color display screen is 70% of the factory, about 1800CD/m2.
3. Because of the noise brought by the preface and the quantization noise of the analog-to-digital conversion, the video display effect of the display screen is greatly affected, and it is necessary to adopt a certain noise reduction disposal method.
18650 protected batteries have an electronic circuit.
The circuit is embedded in the cell packaging (battery casing) that protects the cell from [over charge", heat or [over discharge", over current and short circuit.
A 18650 protected battery is safer than an 18650 unprotected battery (less likely to overheat, burst or start on fire).
3volt Battery, cr123a 3v, Cell 18650, 18650 mah
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