Arrow board is controlled by intelligent MCU
Voltage can be 12V or 24V DC.
13 kinds of working modes are available , five flashing, one hop and seven Sequential modes
Brightness adjustment for energy-saving, four modes, 25%, 50%, 75%, 100% .
Choose 25 lights or 15 lights through DIP switch on receiver
13 modes for choice
When power is on, the correspondent mode is⑸.
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