Street Lamp -all products EMC passed -CE,UL,CUL,Rohs,CB,Gost ... .98-lamp working frequency: 200-260KH-wide working temperature: -40~50 Centigrade Our advantage:-biggest and professional producer in induction lighting,ballast ... quality control system-superior after sale service-quick problem solutionLTTS induction light makes the world more energy-saving & Eco-environment because ...