Optical indicators
control lights, displays (dot matrix, flourescence, mechanical), indicators, lampholders, LCDs, LEDs, lighting controls, opto-semiconductors, signal lights, signalling systems & equipment

Lamps
automotive-, emergency lamps & fittings, explosion-proof lamps & fittings, festoon-, filaments, fluorescent-, gasdischarge-, halogen-, holders & fittings, indicator-, metal-lamp-caps, micro- & miniature-, navigation lamps & fittings, neon-, optical-, oven lamps & fittings, resistance bulbs, ship-, security-, studio-, telephone-, traffic-, train-

Relays
automotive-, contactors, counters, cradle-, dialer-, industrial-, logic control-, military-, miniature-, pcb-, power-, reed-, relay contacts, relays (contacts, holders, sockets, spooles, springs, testers), round-, special-, telecom-, thermal-, time-delay-, timers, vacuum-

Alarm Annunciators & acoustic indicators
audible warning devices, bells (telecom), hooters (various), horns (various), piezo sound generators, signaling units (AC, bells, buzzers, DC, explosion-proof, hooters, horns, sirens, water-resistant), sirens (various), special audio speakers