LP1/LP4 Illuminated LED Pushbuttons E-Switch offers Series LP1 and LP4 Illuminated LED Pushbuttons featuring options for Momentary or Latching right angle, as well as multiple bezel and button designs. The E-Switch LP1 and LP4 Illuminated LEDPushbuttons are ideal for a wide range of applications, such as telecommunications, consumer electronics, audio/visual, medical, testing, instrumentation, computers, servers, and peripherals. The LP1 and LP4 series' mechanical life is 50,000 cycles.