tender for set of illuminated push button led type 22.5mm dia operating voltage 110vac with 1no+1nc aux contact block flush type. each set comprising of 4nos of pb asfollows: 1) one red ledpush button actuator & one red poly carbonate lens, 2) onegreen led push button actuator & one green poly corbonate lens, 3) oneyellow/amber led & yellow/amber poly carbonate lens, 4) one white led & white polycarbonate lens. total 4nos. each set. makes schinder / jaibalaji / autonics / siemens /technik euchner / allen bradly makes only.