This Harmony ZB6ZB51B is a yellow light block with body/fixing collar with integral LED 12V to 24V, 1 NO. It is part of the range Harmony XB6 diameter 16mm monolithic plastic push buttons, switches, and pilot lights
This Harmony ZB6AW5 is a yellow flush illuminated push button head, spring return, 12V to 24V. It is part of the range Harmony XB6 diameter 16mm monolithic plastic push buttons, switches, and pilot lights
This Harmony ZB6CW5 is a yellow square flush illuminated push button head, spring return, 12V to 24V. It is part of the range Harmony XB6 diameter 16mm monolithic plastic push buttons, switches, and pilot lights
This Harmony ZB6DW5 is a yellow rectangular flush illuminated push button head, spring return, 12V to 24V. It is part of the range Harmony XB6 diameter 16mm monolithic plastic push buttons, switches, and pilot lights