1. Common cathode directly improves the color decaying(brightness, gamut, color temperature) of
the common anode during the continuous temperature rise stage, and maintains color consistency
at extreme temperatures.
2. Common cathode can improve the active power, and the low voltage(2.8V+3.8V) is used
in the light bead power supply to reduce the useless power of the LED display screen in use,
thus achieving energy saving of 20%-30%.
3. Stability long life time-------Low consumption of electricity to increase the lifetime of LEDs.
4. Energy efficient--------average 180W per sqm, while traditional led display is over 600W per sqm
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