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It named "Environmental" Lamp and it is designed for bike.
According to the different weather conditions,you can control the cycle lamp to emit different forms of light to warn other vehicles.Then your driving will be more secure.
You can control the lamp by rotating.When it’s raining,the light is yellow and flashing.When it’s foggy,the light is red.In the normal night,the light is white.During the day,the light is off.
Ningbo University Of Technology