This 5 piece set includes reset button momentary switches with blue LED illumination. Each switch is a tactile momentary device with a compact 12 x 12 x 7.3 mm body (listed as 12 x 12 x 7 mm in some references). The blue LED lights when powered, providing a clear visual indicator of the switch status. Key benefits Clear status indication: the blue LED illuminates when the switch is energized, helping you locate and confirm input in low light or enclosed spaces. Compact and unobtrusive: small 12 x 12 mm footprint fits in tight panels and enclosures without crowding other controls. Simple momentary action: acts as a reset/input control that returns to the off state when released, suitable for momentary signaling in a variety of projects. Ready to use in multiple projects: supplied as a set of five switches, convenient for prototyping or building multibutton interfaces. Key attributes Functionality: reset button momentary switch with light; tactile actuation. Illumination: blue LED illuminated. Size: 12 x 12 x 7.3 mm (12 x 12 x 7 mm as listed in some references). Actuation: tactile switch (Tact). Package contents: 5 pieces. Compatibility and usage: suitable for electronics projects, DIY enclosures, and panel or control interfaces that require a visible, momentary input with status lighting. Material and electrical specifications: not specified in the listing. Details such as material, voltage, current rating, and mounting style are not provided here. Use cases Reset input for microcontroller projects: use the blue LED illuminated switch as a visible reset button on Arduino, ESP32, or other development boards to indicate when the device is being reset. Illuminated control panel for small enclosures: add a clearly visible momentary input with status indication to a compact control panel, cabinet, or enclosure where space is limited. Low light operation indicators: place in equipment or DIY devices where knowing the active state of a reset or input button is helpful in dim environments. Notes This description reflects the product as listed: 5 pieces, reset button momentary switch with blue LED, 12 x 12 x 7.3 mm (also referenced as 12 x 12 x 7 mm), tactile actuation. Material, electrical ratings, and mounting details are not provided in the current listing.