The Cartek Shift Light incorporates 8 full colour, high intensity LED s and includes an additional alarm signal input which will flash a different display pattern to let the driver know there is a fault with the vehicle.Very bright high intensity LED indicatorsDash mountable, fully sealed and waterproofYou can configure:The lower and upper RPM settings with or without the engine runningSelect from several LED display patterns for the Shift Light sequenceThe brightness of the LED s.The Cartek Shift Light is available with 2 connection types:RPM Signal - Takes the signal from an RPM output on an ECU or ignition coil. Designed to work with most ignition systems and tacho signals.OBD2 - For vehicles with an OBD2 port, simply plugs in to the port receive the RPM signalThe unit is fully sealed for open-cockpit cars.Dimensions: W75mm x H18mm