In summary, the ESP family of quartz restrike controls and ASP family of fluorescent restrike controls offer a simple way to automatically provide auxiliary light when an HID lamp is extinguished. With non-arcing switches, ESP and ASP devices may be used in Class I Division II vapor tight fixtures. Other features include a high temperature rated, flameproof, plastic enclosure, 90ºC maximum surface temp rating. The quartz restrike controls are UL recognized components for the US and Canada.