16mm Mini Self-Locking Push Button Switch with Waterproof LED and Brass Material for 1NO1NC Switch Combination 16mm Mini Self-Locking Push Button Switches Product Features Brass Material: Durable and corrosion-resistant construction Waterproof LED: IP65 rating ensures reliability in wet environments 1NO1NC Switch Combination: Versatile for various electrical circuits LED Indicator Light: Illuminates for visual confirmation of button status Self-Locking Design: Ensures secure