{"title":"Tower Light - Red Yellow Green Alert Light with Buzzer - 12VDC","handle":"tower-light-red-yellow-green-alert-light-with-buzzer-12vdc","url":"/products/tower-light-red-yellow-green-alert-light-with-buzzer-12vdc","description":"A tri-colour tower light with red, yellow, and green LED segments plus a built-in buzzer, powered by 12V DC. Each light and the buzzer are independently controlled via separate wires, making it easy to indicate machine status, project states, or alert conditions from a microcontroller.\n\nThe light mount rotates 180° so the tower can be installed vertically, horizontally, or at any angle in between. Mounting holes on the base allow secure attachment to panels and enclosures.\n\nKey Features\n\n\nThree Colour Segments – Red, yellow, and green LEDs\n\nBuilt-In Buzzer – Audible alert controlled via a separate wire\n\nIndependent Control – Each light and buzzer activated individually by grounding its wire\n\nAdjustable Mount – 180° rotation for vertical, horizontal, or angled installation\n\nMounting Holes – Secure panel mounting\n\n\nWiring\n\n\nBrown wire – Common +12V power\n\nRed wire – Red light (ground to activate)\n\nYellow wire – Yellow light (ground to activate)\n\nGreen wire – Green light (ground to activate)\n\nOrange wire – Buzzer (ground to activate)\n\n\n\nTip: If driving from a 3.3V or 5V microcontroller, use NPN transistors or N-channel MOSFETs to sink the 12V current from each wire. For best brightness, light only one segment at a time — the red and yellow segments may not both reach full brightness simultaneously.\n\n\nSpecifications\n\n\nOperating Voltage – 12V DC\n\nCurrent – ~50 mA per segment\n\nLight Source – LED (red, yellow, green)\n\nMount Rotation – 180°\n\n\nIdeal For\n\nMachine and process status indication\nIoT and home automation alerts\nWorkshop and lab equipment monitoring\nFun project builds and escape rooms\n\n\nPackage Contents\n\n1× Tri-Colour Tower Light with Buzzer (12V DC)\n\n\nResources\n\nWiring Guide for 12V Lights with Microcontrollers\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11048,"title":"Default Title","sku":"AF-2993","price":65.51,"on_sale":false,"in_stock":true,"available_quantity":48,"option1":"Default Title"}]}