International traffic signs with CE, ROHS certification 1.warranty 1 year 2. ... : 17V/4WBattery: 2*12V/7AhLight source: LEDLED Color: Amber and red Material: Aluminum frame, galvanized cover plateFrequency: 40times/MINFlashing way :At ... .555,Panyu north avenue,Panyu district, Guangzhou,Guangdong,China led traffic sign ,solar traffic sign ,led traffic signal