★ Product ★- Super Short Momentary Metal Push Button Switch; Momentary: Press the button and hold--ON, Release--OFF ★ Super Short ★-The switch is only 15mm height for narrow mounting space; Mounting Hole: 22mm(7/8"); Structure: 1NO; LED Light: 3A, 12V-24V, Halo Ring Yellow; LED life: 40,000 hours ★ High Quality ★- The aluminium alloy shell and O ring make the switch achieves IP66 Waterproof and IK09 Anti-vandal rate; Electrical life: 100, 000 times, Mechanical life: 500,000 cycles ★ 2 wiring methods ★- LED light can be always on or illuminates when the device is working; 4 Brass terminals for connecting or soldering just as you like ★ Wide Applications ★- Suitable for car, computer, instrument and meter industry, door bell, home appliance etc.