Global Electronic Ballast Market By Type (Quartz Bactericidal Lamp Ballast , Electronic Ballast For Ring Lamp , One Dragging One , and One Dragging Two), By Application (Outdoor light box , For Vapor Lamps , For Fluorescent Lamps , and For Halogen Lamps), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029