16mm Big button square illuminated momentary push button switch Part number:PB162DF-11/Y/12V Install diameter:16mm Switch rating: 3A/250VAC Shape: Big square LED and Button color: Yellow Voltage: 12V (Other voltage also can be make: from 1.8V to 230V) Function: Momentary (1NO1NC) Terminal:6 PIN terminal Crust material: Plastic Temperature: - 25 to 55 Degree