Taxi top light ambulances security alarm system by the National Quality Supervision and Inspection Center and other units inspected. 

 Features ambulance taxi top light 
 1, fashionable shell with UV protection, anti-aging functions; 
 2, the passenger indicator can be displayed within the dome light patterns or text to mean "empty" or "full" state, all-weather clearly visible; 
 3, emergency functions, can be displayed within the dome "SOS" international distress signal; 
 4, the information dissemination function, before and after the release of government information in the dome or commercial advertising.