[国外标准] SAE J589b-1977 TURN SIGNAL SWITCH
[国外标准] SAE J588-2000 Turn Signal Lamps for Use on Motor Vehicles Less than 2032 mm in Overall Width
[国外标准] SAE J2320-2001 Discharge Signal Lighting System
[国外标准] JIS C7528-2009 Traffic signal lamps(Amendment 1)