annual repair and maintenance of e and m installations at coimbatore international airport for the year 2021 22 sh supply of spares for ground lighting facilities supply of spares for glf at coimbatore airport , 200w, 6.6 amps halogen lamps with pk-30d base. ( osram make: cat no: 64382 or equivalent ) , 200w, 6.6 amps bi-pin halogen lamp ( osram make cat no: 64386 or equivalent ) , 45w, 6.6 amps bi-pin halogen lamp ( osram make cat no: 64321 or equivalent ) , bi-pin lamp holder suitable for 45w / 200 w 6.6 a runway halogen lamps , 180° red filter ( l&r ) for ama aun runway fitting , 180° green filter ( l&r ) for ama aun runway fitting , 180° yellow filter ( l&r ) for ama aun runway fitting , 180° clear filter ( l&r ) for ama aun runway fitting , 50 mm dia aluminium breakable coupling for approach light fittings , aluminium reflector for ama make mk iii papi , porcelain connector for runway fittings