A singlepiece 12mm yellowlight metal button switch offering a durable, illuminated, selflocking on/off control for 5V, 12V, and 24V power systems. Compact and robust, it gives clear visual feedback and a secure latching action for reliable everyday switching. Key benefits Clear visual feedback: the yellow illumination makes the switch state easy to see at a glance. Secure on/off control: selflocking (latching) mechanism keeps circuits reliably on or off without holding. Durable metal construction: metal button body for a professional look and longer service life compared with plastic buttons. Multivoltage compatibility: designed for use with 5V, 12V, and 24V power supplies, making it versatile across projects and equipment. Compact round form: 12mm round size is suitable for small enclosures and tight panel layouts. Key attributes Quantity: 1PC (single unit) Size: 12mm (round) Illumination: yellow light Body material: metal (button) Function: selflocking (latching) on/off switch Voltage compatibility: 5V, 12V, 24V Functionality and performance Illuminated pushbutton provides on/off control plus immediate visual confirmation when powered. Selflocking action latches the switch in the pressed (on) position until pressed again to release, eliminating the need to hold the button. Metal construction improves mechanical durability and delivers a tactile feel. Typical applications Small control panels and instrumentation: use as a visible power or mode switch where clear indication and reliable latching are required. DIY electronics and maker projects: integrates with 5V and 12V hobby circuits to add a durable, illuminated control point. Automotive, motorcycle, or auxiliary electronics (12V/24V systems): provides a compact illuminated switch for accessories and aftermarket devices. Installation and compatibility notes Designed for integration into systems using 5V, 12V, or 24V power supplies. Confirm wiring and polarity according to your device requirements. Compact 12mm round form factor fits constrained spaces; verify compatibility with your panel or enclosure dimensions before installation. What makes it different Combines a yellow illuminated indicator with a metal, selflocking button in a compact 12mm round package — offering a balance of visibility, durability, and simple latching control across common voltages (5V/12V/24V). Package includes 1PC metal round button switch, 12mm, yellow light, selflocking, for 5V/12V/24V systems