Lighting and turn signal indicators are mandatory for most European markets and their safety requirements, which are based on the automotive industry, are tough to meet. Nevertheless, the ISM complies with all relevant standards and includes features such as 12V control of lamps and turn signal fault detection, as well as offering a unique brake light function. Alternatively, the brake light output can be programmed to drive a high-volume external horn in response to the horn button on a Joystick Module.