Please note our shipping changes for Wednesday, Nov 27th. Freight, FedEx ground & Cust PickUp cutoff will be 11:00AM ET. FedEx Priority cutoff will be 3:00 PM ET. No UPS shipping will be available on this day. Orders placed after the Wednesday cutoffs will process on Monday, December 2nd. See ADC Shipping Policies for exceptions.
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Stacklight accessories assist with device installation and protection, including replacement bulbs, mounting hardware, brackets, contact boxes, bases, cable glands, center screws, extension tubes, covers, memory card, and o-rings.
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Stack Lights
Category Selection
Stack lights (or signal towers) are modular systems that provide illuminated and audible status indications that can be seen and heard from a distance in all directions. Signal towers with a modular design and "no tools assembly" means installation in minutes and adjustments in seconds.
Pre-assembled or custom configurable signal tower models are available in 24V, 120VAC/VDC, or 100-240VAC versions with incandescent or LED modules in a variety of colors and light functions. Additional options include Xenon strobes, audible alarms, sirens, standard or flashing bases, and a selection of mounting styles.
Stack Lights Overview
For part listings and specifications, go to Shop Now
Signal Towers
Newest Additions!
- WERMA eSIGN series LED signal towers with white housing
Pre-assembled signal towers provide illuminated status indications for machines, systems, and processes. Units come completely assembled and are available with up to 15 tiers, in diameters up to 100mm, and in a variety of color combinations. Permanent, blinking, flashing, or rotating light effects and audible alarm options are available.
Signal Tower Elements
Signal tower elements allow users to build their own stack lights for customized system status indications. In diameters up to 100mm, easy-to-assemble components include optical elements in a variety of colors, with incandescent, LED, or Xenon lighting, and audible buzzer and siren elements.
Signal Column (wall mount)
LED signal columns are wall-mounted units that provide visual alarm notifications. They are available with three color LED indicators and DIP-switch-selectable permanent or blinking light functions. Select models include continuous or selectable (8) tone alert.
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