UL 924 Listing - What It Means

Underwriters Laboratories (UL) is a world renowned independent product safety certification organization. UL was established in 1894 and the company is headquartered in Northbrook, IL. Underwriters Laboratories creates standards and testing procedures for all types of products, components, assemblies, tools, and materials, in regards to product safety.

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UL is approved by the U.S. Government's Occupational Safety and Health Administration (OSHA) to carry out testing of products and issue certifications. The testing facilities used by UL are inspected and regulated by OSHA.

UL 924 is UL's Standard for Safety of Emergency Lighting and Power Equipment. UL tests and certifies exit signs, emergency lights, and combo emergency exit signs to meet functionality, reliability, and visibility standards.

View our UL Listed:

• Emergency Lights

• Electrical Exit Signs

• Non-Electrical Exit Signs

• Emergency Exit Combos

UL 924 Listed photoluminescent exit signs are acceptable to use in place of UL Listed electrical exit signs.

UL 924 listed electrical exit signs are tested and given a visibility rating of at least 100 feet, meaning in total darkness they are legible from a 100 foot viewing distance. The battery backup systems inside exit signs, which power illumination during power outages, are tested by UL and must provide at least 90 minutes emergency operation. Letters must be red or green and at least 6" height with a 3/4" letter stroke.

Non-Electrical UL 924 Exit Signs

Non-electrical glow in the dark (photoluminescent) and self-luminous tritium powered exit signs are also evaluated under UL 924 but to a slightly different standard. Non-electrical exit signs are given a viewing distance rating of 50, 75, 100, or 125 feet based on visibility testing procedures. After the photoluminescent material is charged for one hour, glow in the dark exit signs must be visible from a given viewing distance for at least 90 minutes, similar to electrical exit signs.

UL Listed Emergency Lights feature reliable battery backup systems that will operate for at least 90 minutes when power fails.

UL Emergency Lights

Emergency light testing under UL 924 is similar to that of electrical exit signs. Emergency lights require electrical power and always feature a battery backup system. Emergency light battery backup systems must illuminate both lamp heads on the unit for at least 90 minutes. The lamp heads must also meet a minimum illumination level.

All emergency lights, exit signs, and combo emergency exit signs offered through our online store are UL Listed and compliant with a wide range of building and fire code and regulations including: NFPA 101 Life Safety Code, OSHA, ICC, IBC, IFC, California Building Code and more.

UL Emergency Light Choices

There are many types of emergency lights available. The most popular UL emergency light is the TEL-W thermoplastic model. Thermoplastic emergency lights are UL Listed and affordable, beginning at just $20 per unit.

There are other types of UL emergency light models that we offer as well. We offer waterproof UL emergency lights that are designed for outdoor use. We also offer recessed UL emergency lights that are designed for high-end interiors.

More Info on UL Emergency Lights and Exit Signs

For questions on compliance, to request a quote or invoice, and to place an order please call us today on our toll free number. We have a friendly staff here to help you find the right fixture for your project. You can also email the customer service staff with any questions or requests you may have.