The signal head will accommodate our Tri-color LED. Very detailed instructions are included along with painting and finishing tips and a history of the searchlight signal. These signals are based on Southern Pacific Prototypes but can be found on other rail lines. The kit contains a brass target that has been stamped to form a rim just like the prototype - includes standard signal hood. This kit can be built in one of two different configurations as shown in the pictures. For customizing your signals see our Signals Details package. Also, a set of drill bits to aid in constructing these signals will be helpful. LEDs, if desired, must be ordered separately.