DSR Item No Description Of Item Unit Rate 1 Solar Powered Road Studs of self illuminating, flashing type having 3 Nos. LEDs for Bi-directional studs (flashing and not flickering), visibility minimum 1000 meters, flashing rate 65-75 times per min, with detachable Ni-MH battery of 1.2 V to give back-up of atleast 3-4 days