About Relative Visibility of Signal Lights
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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. They meet NEMA 4X for protection from corrosion and washdowns.
Use the extension pipe and mounting flange to make the light taller (both sold separately).
Use the vertical-mount bracket (sold separately) to mount the light to a vertical surface such as a wall.
For technical drawings and 3-D models, click on a part number.
| No. of Lights | Ht. | Dia. | Current, A  | Pipe Size | Gender | Material | Electrical Connection | Fasteners Included | No. of Mounting Holes | Mounting Hole Dia. | Light Pattern | Choose a Light Color | Each | |
Incandescent | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC | ||||||||||||||
| 1 | 7 3/4" | 2 1/4" | 0.20 | 3/4 | Female | Plastic | Screw Terminals | No | 4 | 1/8" | Continuous | 0000000 | 0000000 | |
| 3 | 12 1/2" | 2 1/4" | 0.60 | 3/4 | Female | Plastic | Screw Terminals | No | 4 | 1/8" | Continuous | Amber/Blue/Green/Red/White | 0000000 | 000000 |
| 5 | 18 1/2" | 2 1/4" | 1.00 | 3/4 | Female | Plastic | Screw Terminals | No | 4 | 1/8" | Continuous | Amber/Blue/Green/Red/White | 0000000 | 000000 |
24V AC/24V DC | ||||||||||||||
| 1 | 7 3/4" | 2 1/4" | 0.20 | 3/4 | Female | Plastic | Screw Terminals | No | 4 | 1/8" | Continuous | 0000000 | 000000 | |
| 3 | 12 1/2" | 2 1/4" | 0.60 | 3/4 | Female | Plastic | Screw Terminals | No | 4 | 1/8" | Continuous | Amber/Blue/Green/Red/White | 0000000 | 000000 |
| 5 | 18 1/2" | 2 1/4" | 1.00 | 3/4 | Female | Plastic | Screw Terminals | No | 4 | 1/8" | Continuous | Amber/Blue/Green/Red/White | 0000000 | 000000 |
| Voltage | Wattage | Brightness, lumens | Bulb Shape Number | Bulb Material | Color | Rated Life, hrs. | Bulb Dia. | Overall Lg. | Each | |
Incandescent | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 28V AC | 5.6W | 37 | T3 1/4 | Glass | Frosted | 7,000 | 3/8" | 1 1/16" | 000000 | 00000 |
| Ht. | Material | Pipe Size | Thread Type | Gender | Each | |
| 31 1/2" | Steel | 3/4 | NPT | Male | 0000000 | 0000000 |
| Pipe Size | Thread Type | Gender | Each | |
| 3/4 | NPT | Female | 0000000 | 000000 |
| Mount Type | Material | Fasteners Included | Color | Mounting Hole Center-to-Center | Width | Depth | Finish | Each | |
| Surface | Aluminum | Yes | Black | 1.378" | 2" | 3.44" | Powder Coated | 000000 | 000000 |
| Lens Color | Lens Material | Each | |
| Amber/Blue/Green/Red/White | Plastic | 0000000 | 0000000 |
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. All components except for replacement bulbs meet NEMA 4X for protection from corrosion and washdowns.
Sound module must be placed in the top position.
For technical drawings and 3-D models, click on a part number.
| Mount Type | Ht. | Dia. | For Max. No. of Sound Modules | Gender | Thread Size | Fasteners Included | No. of Mounting Holes | Mounting Hole Dia. | Electrical Connection | Voltage | Material | Includes | Environmental Rating | Specifications Met | Each | |
| Surface | 12 5/8" | 2 3/4" | 1 | __ | __ | No | 4 | 1/4" | Screw Terminals | 120V AC/24V AC | Plastic | Top cap | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0000000 | 0000000 |
| Pipe | 13 3/8" | 2 3/4" | 1 | Female | M20 | No | __ | __ | Screw Terminals | 120V AC/24V AC | Plastic | Top cap | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0000000 | 000000 |
| Light Pattern | Ht. | Dia. | Environmental Rating | Specifications Met | Choose a Light Color | Current, A | Each | |
120V AC | ||||||||
|---|---|---|---|---|---|---|---|---|
Incandescent | ||||||||
| Continuous | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.06 | 0000000 | 000000 | |
24V AC | ||||||||
Incandescent | ||||||||
| Continuous | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.03 | 0000000 | 00000 | |
| Sound Pattern | Ht. | Dia. | Signal Type | Audible Signal Type | Volume | Volume Control | Material | Environmental Rating | Specifications Met | Current, A | Each | |
120V AC/120V DC | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Continuous, Pulse | 2 3/4" | 2 7/8" | Audible Alarm | Buzzer | 88-100 dBA @ 10 ft. | Adjustable | Plastic | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.04 | 0000000 | 0000000 |
24V AC/24V DC | ||||||||||||
| Continuous, Pulse | 2 3/4" | 2 7/8" | Audible Alarm | Buzzer | 88-100 dBA @ 10 ft. | Adjustable | Plastic | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.09 | 0000000 | 000000 |
Flashing Lights with Buzzer
The buzzer warns workers of hazards even when they’re outside a direct line of sight.
Light intensity is measured in candlepower (cp), which indicates how bright a light appears at a distance. Common examples include a car’s taillights (50 cp), traffic signals (600 cp), headlights (15,000 cp), high beams (50,000 cp), and police car searchlights (150,000 cp).
Lights | Replacement Bulbs | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Current | Light Intensity, cp | Sound Pattern | Volume | Ht. | Dia. | Material | Pipe Size | Thread Type | Gender | No. of Wire Leads | Wire Lead Lg. | Choose a Light Color | Each | Each | ||
Incandescent | ||||||||||||||||
| 0.29 A @ 120 V AC | 2,374 | Pulse | 85 dBA @ 10 ft. | 7 3/8" | 6" | Aluminum | 1/2 | NPT | Female | 2 | 6" | 0000000 | 0000000 | 0000000 | 000000 | |
| 1 A @ 12 V DC | 5,049 | Pulse | 85 dBA @ 10 ft. | 7 3/8" | 6" | Aluminum | 1/2 | NPT | Female | 2 | 6" | 0000000 | 000000 | 0000000 | 0000 | |
| 1 A @ 24 V DC | 5,049 | Pulse | 85 dBA @ 10 ft. | 7 3/8" | 6" | Aluminum | 1/2 | NPT | Female | 2 | 6" | 0000000 | 000000 | 0000000 | 0000 | |
Revolving Lights with Bell
The revolving motion of the light makes these more visible than flashing lights. The bell alerts workers when they're outside a direct line of sight.
Light intensity is measured in candlepower (cp), which indicates how bright a light appears at a distance. Common examples include a car’s taillights (50 cp), traffic signals (600 cp), headlights (15,000 cp), high beams (50,000 cp), and police car searchlights (150,000 cp).
Lights | Replacement Bulbs | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Environment | Light Intensity, cp | Current | Volume | Ht. | Wd. | Dp. | Fasteners Included | No. of Mounting Holes | Mounting Hole Dia. | Choose a Light Color | Each | Each | ||
Incandescent | |||||||||||||||
| Plastic | __ | 4,000 | 0.4 A @ 120 V AC | 93 db @ 10 ft. | 15 1/2" | 6" | 4 7/8" | No | 2 | 1/4" | 00000000 | 0000000 | 00000000 | 000000 | |
| Zinc | Outdoor | 1,000 | 0.4 A @ 120 V AC | 93 db @ 10 ft. | 15 1/2" | 6" | 4 7/8" | No | 2 | 1/4" | 00000000 | 000000 | 000000 | 00 | |