The 12mm Waterproof Oxidized Black Metal Button Switch with LED Lamp is a versatile Start Stop Push Button designed for PC power control, automotive use, and general panel installations. Its durable oxidized black metal housing, waterproof construction, and integrated LED indicator provide reliable operation in demanding environments while delivering clear status feedback. Key benefits Waterproof metal housing for reliable performance in wet, dusty, or harsh environments, ideal for car dashboards, outdoor enclosures, and DIY control panels. Integrated LED lamp provides visible on/off indication with low power draw, improving visibility in dim lighting. Flexible operation modes with selectable momentary or latching action to fit start/stop or power toggle applications. Compact 12 mm mounting size that fits standard 12 mm panel cutouts for easy retrofits and clean panel layouts. Professional, durable finish with corrosionresistant oxidized black metal suitable for longterm use. Key attributes Type: 12 mm button switch with LED lamp Operation: Momentary and/or latching (Start Stop Button) Material/finish: Oxidized black metal, waterproof design Illumination: Integrated LED lamp Electrical compatibility: Supports voltages of 3V, 5V, 6V, 12V, 24V, and 220V Panel cutout: 12 mm Applications: PC power switch, car, and general control panels Two to three specific use cases Use case 1: Start/stop control for a DIY vehicle accessory or portable device powered by a car battery, with the LED indicating active status. Use case 2: Power switch for a custom PC or server build; LED illumination helps confirm poweron status, while the momentary or latching mode accommodates different boot or reset logics. Use case 3: Industrial or home automation panel for machine start/stop control, leveraging the waterproof design for damp or dusty environments. Installation and wiring notes Choose the correct voltage and connect the switch and LED circuits according to your chosen operation mode (momentary or latching) and system voltage. Mount through a 12 mm panel cutout and secure with the mounting hardware supplied, ensuring a clean, secure installation.