12mm 16mm 19mm 22mm Metal push button switch LED Light Waterproof

Is Smart Device : no Current : 3A Material : aluminium alloy Switch Type : Touch On/Off Switch Certification : CCC,CQC Origin : Mainland China Certification : CQC,CCC Item Type : Switches Features : Self-healing and self-locking types Warranty : One year Model Number : 12/16/19/22mm metal button Material : Button plastic + shell stainless steel nickel-plated copper LED color : Red yellow blue white green LED voltage : Please select the correct voltage in the options Use : The device button of the on-board PC Grade : IP65 Rated switch : 3A / 250VAC Opening diameter : 12mm / 16mm / 19mm / 22mm Switch type : No (normally open); NC ((normally closed) Note: the connector needs to be purchased separately Difference between auto-recovery button and auto-lock button: 1. Self-recovery button: press this button to turn on the power (light on); Release your hand, the power will appear and turn off automatically (the light goes out) 2. Self-locking button: press the power button, release your hand, and keep the button stationary (lit); Press the button again to display and turn off the power (the light goes out). If you need a custom symbol, contact customer service Note: The transportation speed of economical small packages is relatively slow. If you need a button urgently, please choose the standard transportation method! Size: 12/16/19/22mm Voltage: 3-6v 12-24v 110-240v Material: stainless steel + plastic (high pressure resistant plastic) (1). What do the signals #34;NC #34; and #34;NO #34; mean? #34;A #34; #34;+ #34;: the positive pole of the led #34;LED #34; #34;- #34;: negative pole of led #34;NC #34;: Normally closed #34;NO #34;: Normally open #34;C #34;: Common (2). How to connect? 1. Connect #34;NO #34; and #34;C