Product Description: 1. Momentary button switches can be used in various applications including automobiles motorcycles ships computers LEDs and electronic projects. They can be used as power switches for computers boat horns or starter switches for cars trucks and automobiles and other applications that require temporary activation of current 2. The protection level of the switch is IP67 waterproof which means it can withstand heavy rain splashes etc. without damage made of nickel-plated copper; anti-rust and anti-corrosion installation: Screw the threaded neck of the switch into the cut hole on the panel and fix it on the back of the panel with the attached metal nut. By placing the O-ring between the top of the neck (located behind the panel) and the front of the panel you can choose to use O-rings to increase water resistance including switches metal nuts and rubber O-rings Product parameters: type: Momentary (press the button open; release the button close) Panel diameter: 19 mm Maximum switch rating: 250V AC / DC 2A Circuit type: 1 NO Switch type: SPST Shell material: nickel-plated copper Protection level: IP67 Working temperature: -20 to 55°C Package list: 1*Button switch Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.