12mm Momentary Push Button Switch High Round Head Stainless Steel Normally Open Item dimensions L x W x H: 1.57 x 1.18 x 0.39 inches Ideal for customizing automotive and motorcycle controls, as well as modifying switches on various equipment. This set contains 2 pieces of silver stainless steel ring LED pushbutton switches. The LED operates at 12V only. A mounting hole size of 0.5 inches (12mm) is required. This 12mm switch is of the momentary type: press and hold to activate (ON); release to deactivate (OFF). It features a 1NO contact configuration. The electrical contact life is rated for 200,000 operations, while the mechanical life is rated for 1,000,000 cycles. Made from high-quality metal and featuring IP65 waterproof protection, it is suitable for use in damp or dusty conditions.