Complete switches require a switch, a lens and a bezel. Flush Mount Switch Bodies. Professional grade, flush mounting switches ideal for audio and instrumentation uses. LED illumination (contained within lens) Gold contacts for reliable low current switching Snap action mechanism 15.8mm dia. Round, or 15.8 x 15.8mm square cut out Maximum panel thickness 4mm 1mm protrusion above panel surface Selection of bezels available, see stk. no < 218-8736') 218-8736/ typically Round or square lenses available for switches, see stk. no < 218-8590') 218-8590/ typically PCB plug in sockets available, see stk. no < 218-8720') 218-8720/ typically Operating temperature range -25 to +65°C