Are Glo Brite exit signs UL listed?

Jessup lists the Glo Brite exit sign series to UL 924. A listing is the manufacturer's representation about the product, not a statement that an installation satisfies your local code. Placement is judged against your adopted code and AHJ.

Do photoluminescent exit signs need power or batteries?

No. They charge from the ambient light in the space and stay readable when power is lost, with no circuit, batteries, lamps, or tritium. They do need enough charging light during normal occupancy, so the listed illumination conditions have to be met where the sign goes.

What is the difference between the 50 foot and 100 foot signs?

The rating is the viewing distance the sign is listed for. A 100 foot sign reads from farther away, which long corridors and open areas call for. The 50 foot rating covers ordinary interior spacing.

Can these be used outdoors or in wet locations?

The PM100 series is the one rated for outdoor and wet locations. The interior families are not, so an exposed stair or a parking structure that takes weather needs the PM100.

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Jessup Manufacturing

Jessup Manufacturing has been producing adhesive-coated films and photoluminescent safety products from McHenry, Illinois since 1956, and now runs two manufacturing plants in the United States. Its Glo Brite line covers the egress side of life safety, organized around UL 924 listed exit signs, egress path marking, and code-specific egress systems. We carry the Glo Brite exit sign series and source it directly from Jessup.

Why photoluminescent instead of electrified or tritium

A photoluminescent sign charges from the ambient light already present in a building and stays readable through a power loss, so it needs no electrical circuit, no batteries, no lamps, and no radioactive tritium. That removes the inspection, battery-replacement, and hazardous-disposal burden those alternatives carry, which is why these signs turn up in stairwells, parking structures, and anywhere running power to a sign is impractical. The tradeoff is that the sign has to receive enough charging light, which the photoluminescent systems reference covers.

Selecting by viewing distance and mounting

Glo Brite exit signs are rated by viewing distance, offered here in 50 foot and 100 foot ratings. The PF50, PF100, and P50 series cover interior work, with the P50 available in acrylic frame, aluminum frame, plastic frame, and frameless constructions. The PM100 series is rated for outdoor and wet locations. A conduit mounting bracket is available where a sign hangs off structure rather than mounting flat to a wall.

Where the codes come in

Exit sign placement is set by the adopted building and life safety code, not by the sign. IBC Chapter 10 and NFPA 101 govern where signs are required and what stays visible along the means of egress. Jessup lists a country of origin per part number in its published specification charts, which matters on a domestic sourcing requirement, since origin can vary by part number inside one family. Full documentation is published on the manufacturer site.

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