bids are invited for operation and day to day general maintenance of electromechanical services , replacement of the following electrical accessories 36 or40 watt fluorescent tube rods , replacement of 36or40 watt electronic ballast for fl. tube fittings , replacement of starter for fl. fittings , replacement of 9 or10 watt led lamp , replacement of 12or15 watt bc led lamp , replacement of 20or22w ultra bright led tube light with very high efficacy more than 115 lm , replacement of 6 or10 amps 1 way piano type switch , replacement of 20 amps 1 way piano type switch , replacement of 6 amps 3 pin piano type socket , replacement of 16 amps 3 pin piano type socket , replacement of capacitor for ceiling fan , bearings for ceiling fans as required. , rewinding of ceiling fan by superior quality super enameled copper conductor , overhauling of ceiling fan including dismantling, heat varnishing of windings, greasing of bearings, refitting, testing etc. , replacement of faulty and damaged ftl fittings by new one of 22w led batten total quantity : 216