Check the listing for details. Metal Black Push Button Switch Momentary Latching Waterproof LED Light car Boat. Condition: New. Listed at 2.99 USD. Black Push Button 12/16/19/22mm Waterproof Momentary Switch Waterproof LED Sight Car Boat Size:12mm/16mm/19mmVoltage:3-6v 12-24v 110-240vMaterial: stainless steel + plastic (high pressure resistant plastic) （1）. What do the signals "NC" and "NO" mean? "A" "+": the positive pole of the led "LED" "-": negative pole of led"NC": Normally closed"NO": Normally open"C": Common （2）. How to connect?1. Connect "NO" and "C": Unless the button is pressed, the circuit is always disconnected.2. Connect "NC" and "C": Unless the button is pressed, the circuit is always closed.3. Each button will have a self-configuring sealing ring NOTE We Have Large Quantities. If You Need More Quantities Please Leave Us A Message. Item specificsCurrent: 3AFeatures: Self-healing and self-locking typesMaterial: Stainless SteelItem Type: SwitchesWarranty: One year Model Number: 12/16mm metal buttonSwitch Type: Touch On/Off SwitchMaterial: Button plastic + shell stainless steel nickel-plated copperLED color: Red yellow blue white greenLED voltage: Please select the correct voltage in the optionsUse: The device button of the on-board PCGrade: IP65Rated switch: 3A / 250VACOpening diameter: 12mm / 16mm Switch type: No (normally open); NC ((normally closed) Payment. We accept PayPal Shipping. 1. Items will be shipped within 3 to 5 Business days after the cleared payment. 2.All items will be checked carefully and packaged in good condition before dispatching the product. 3.The item will be shipped to your eBay registered address, please make sure your “Ship to” address on eBay is correct. Return Policy. 1.We accept returns within 30 days from item arrival. 2.Buyer is Responsible for Return Shipping & Handling costs. Refund 1.we accept refund if product not as described if the goods are damaged. 2.please provide photos.we can give a full refund or send you a new item. 3.if the product is lost or the wrong number.if we make a mistake.we accept partial refund compensation. Feedback. 1.Our first priority is to provide you with an easy,pleasant,and anxiety-free shopping experience. 2.we try our best to give a clear,candid,and complete description of our products and their conditions. 3.we are always ready to help if you have questions or encounter a problem ,but if for any reason you are. 4.not satisfied with a product or service please do not hesitate to contact us.It is very important to us that you have a positive & 5 star transaction with us. 5.please contact us promptly before you leave us negative feedback.we well try our best to resolve you problem. 6.If I am not online,please leave your message,we will reply you once we log in.we reply every message except we have not get your message.