Stack Light Bulbs | McMaster-Carr

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104 Products

Status-Indicating Light Bulbs

Bayonet Base Status-Indicating Light Bulbs

Use these as replacement bulbs in stack lights.

Screw-In Base Status-Indicating Light Bulbs

Also known as beacon lights and signal lamps, these bulbs provide high-intensity light so they're often used in security warning devices and machinery.

Stack Lights

Pipe/Surface-Mount Stack Lights

These lights have lenses that snap in and out, so you can easily swap colors or change their position in the stack.

Surface-Mount Stack Lights

Mount the M22 male thread on the bottom of the light through a hole and then secure using the included nut.

Select-a-Color Stack Lights

Choose from seven colors, including nontraditional colors such as magenta and turquoise, for a custom four-light stack light.

Compact Stack Lights

Mount these lights horizontally or vertically in places where a tower will not fit.

3-in-1 Compact Stack Lights

Use these lights in tight spaces in place of a tower. They emit three colors from a single lens.

Build-Your-Own Stack Lights

Design a stack light with your choice of light pattern and color. Start with a base, then add up to five modules total—twist and lock them together.

Push-Button Stack Lights with Two-Prong Plug

Give a signal with the push of a button. These lights have a control box for activating each of the three light modules.

Quick-Connect Stack Lights

The quick-connect four-pole M12 plug on these lights makes them easy to hook up and configure.

3-in-1 Compact Quick-Connect Stack Lights

These lights emit three colors from a single lens and can be mounted in tight spaces where a tower will not fit.

Stack Lights with Audible Alarm

Electronic-Alert Stack Lights with Buzzer

Get notified about equipment issues even when you aren't around your machines. These lights connect to your computer via Ethernet, allowing you to set up email alerts when there is a problem with a machine, server, or conveyor.

Stack Lights with Buzzer

These lights have LED bulbs for years of maintenance-free operation and can be wired as either continuous or flashing.

3-in-1 Compact Stack Lights with Buzzer

Good for tight spaces where a tower of lights won't fit, these emit three colors from a single lens.

Programmable Stack Lights with Buzzer

Use a computer to program colors, lighting patterns, and sounds to communicate a variety of status conditions, material levels, and cycle times—these stack lights have 21 colors and 11 sounds.