Price is for 1 traffic signals distribution board traffic signals controller NOT included Functions:extend the controller to support more traffic lights convenient.one board may support up to 6 traffic lights or 12 street lights, and easy expansion.using 2.54mm 5P input plug.using 2.54mm 5P output socket.with 4 jumpers, and you may connect any line convenient.when use JP15 and JP24, and use line1 + line2 as input, you will get 12 outputs for street lights.compatible with DCC PRODUCT DESCRIPTIONan easy way to distribute the traffic signals or street lights.you may still need the following accessories:...