The right switch for every application: The extensive HELLA modular switch Range offers the right switch for almost every application thanks to a wide Range of configuration options for Functions and switch symbols. The series allow all areas of application to be optimally covered. Series 4570 / 7832: The basic programme that has proven itself for more than 20 years for simple electrical systems. The symbol discs are available in different Colors according to DIN or customer request. The symbols are illuminated by incandescent lamps or LEDs, which can be ordered as accessories.