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How long should emergency lights stay on?

Author: Benjamin

Jan. 13, 2025

62 0

Frequently Asked Questions | The Exit Light Co.

Find the answers to many common question about Emergency Lighting and Exit Signs. If you're still stuck, Call or Live Chat with our Customer Service Experts.

With competitive price and timely delivery, Godson Tech sincerely hope to be your supplier and partner.

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Top Asked Questions

How often should I test my Emergency Lights and Exit Signs?

You are required by law to test your exit and emergency lighting regularly. According to NFPA 101 Life Safety Codes, Emergency Lighting Units should be tested monthly for 30 seconds, and annually for 90 minutes. In addition to ensuring that the units function correctly, these also contribute to the maintenance of the battery. Please visit our "Maintenance Resource Guide" for more information on how to test and maintain your Emergency and Exit Signs.

Are there ‘Battery-Powered’ Exit Signs?

There is no such thing as a ‘Battery-Powered’ Exit Sign that meets the codes set out in NFPA 101. Battery Backup Exit Signs contain an internal battery that provides power to the Exit Sign when the electricity goes out. These Battery Backup Exit Signs have to be hard-wired to your building's electricity in order for the battery to work on Emergency Mode. We have a variety of Battery Backup Exit Signs which will illuminate the Exit Sign for around 90 minutes in the event of power failure.

Do batteries recharge after power returns to an Exit/Emergency light?

Yes. Once the electricity has returned to the building, the depleted battery will automatically begin recharging. Unfortunately, these batteries don't last forever. Rechargeable batteries will lose their ability to fully recharge after some time. It may be necessary to purchase a new replacement battery to keep your Exit Sign or Emergency Light in compliance with Code Requirements for 90 minute battery operation.

How do I install Exit Signs and Emergency Lights?

DISCLAIMER: The Exit Light Company recommends a Licensed Electrician install Egress Lighting. Do not attempt unless you are qualified. Neglecting this disclaimer may void the product warranty and cause serious injury or death. The Exit Light Company will not be held responsible for injury or death due to faulty installation.

"Exit Sign Installation Guide"

How do I test Emergency Lights and Exit Signs?

For non self-testing units, look for a small "Push to Test" button that cuts power to the unit, sending it into emergency mode. For your required monthly test, push and hold this button for thirty seconds to test the bulbs and battery. If the light or sign illuminates when holding the test button and maintains a consistent brightness for the full thirty seconds, your unit has passed the test. If the lights dim or don't turn on, you will need to contact an electrician to troubleshoot.

Questions about Emergency Lighting


Do I need Emergency Lighting?

The law requires adequate and reliable illumination for all exits and paths of egress. A number of established codes from OSHA, NFPA and others govern the installation, inspection and testing of exit egress lights. Additionally, some individual jurisdictions have their own unique codes. Consult with your cities' Fire Marshall or Inspector to confirm the correct configuration and requirements of Exit Lighting.

How long does an Emergency Light stay on for?

When the electricity goes out and the Emergency Mode begins, an emergency light must operate for a minimum of 90 minutes according to NFPA 101 Life Safety Code.

What is the difference between damp and wet location emergency lighting?

A damp location is an exterior or interior location that is normally or periodically exposed to condensation of moisture or humidity near electrical equipment. A wet location is defined as an area in which water or other liquids can drip, splash or otherwise come into direct contact with electrical equipment.

Can I wire an emergency light/exit sign to a cord and plug so that it can be plugged into a wall outlet?

Modification of any exit or emergency lights sold by The Exit Light Co., Inc. done by anyone other than The Exit Light Co., Inc. voids the warranty provided for said product. Code allows for a cord to be added but limits it to less than 36". We can add a cord to many products, just ask. View our selection of Corded Exit Signs and Corded Emergency Lights and select the 3' Cord option.


Questions about Exit Signs

What color Exit Sign do I need?

In the United States, Exit Signs can have either red or green lettering, but in most cases red is the safer bet. Many states and cities have enacted their own building codes specifying the color sign required. For example, in New York & Chicago, Exit Signs must have red letters. Many states allow either Red or Green lettering Exit Signs, but have a recommended color. Consult your cities' Fire Marshall or inspector to help determine the right exit sign for you.

Do exit signs have to be lit?

NFPA specifies the requirements for illumination of exit signs. This set of codes requires that all exit signs should be suitably illuminated via a reliable source of light. They must also put out at least an average of 1 foot-candle and never less than .1 foot-candle. In case of power outage, they must remain lit for a minimum of 90 minutes.

What is the letter height requirement for exit signs?

NFPA 7.10.6.1.1 states that Exit Sign lettering should be no less than 6" tall, although certain jurisdictions like New York City require the lettering height to be 8" tall.

How high can an exit sign be mounted?

According to NFPA 101 Life Safety Code: The bottom of new egress markings shall be located at a vertical distance of not more than 6ft 8 in. ( mm) above the top edge of the egress opening intended for designation by that marking. - 7.10.1.9

What are the requirements for an Emergency Exit?

Code is pretty specific in requirements which can be viewed at our NFPA 101 Life Safety Code Page.

How do Power Free Exit Signs work?

Want more information on 12.8v 1.5ah lifepo4 battery products? Feel free to contact us.

Power-free or ‘wireless’ Exit Signs do not need to be hard-wired to a building’s electricity. Instead they receive their illumination from other energy sources. Photoluminescent Exit Signs, for example, are illuminated via the action of photoluminescence. Energy in the form of light is absorbed by the special coating and stored in much the same way as a ‘glow-in-the-dark’ toy. This stored energy is then re-emitted as light, making the light "glow". Visit our "Photoluminescent Exit Signs Resource Guide" for more information.

Tritium Exit Signs use tubes filled with tritium gas that stay illuminated for either 10 or 20 years, depending on the model chosen. These require no maintenance, power, or charging but still emit enough light to meet code. Tritium is used in many applications such as watch dials and optical sights. Visit our "Tritium Exit Sign Resource Guide" for more information.

Why is so much information required to purchase a Tritium Exit Sign?

Self-luminous Tritium Exit Signs are required by law to be registered with the U.S. Nuclear Regulatory Commission (USNRC). Before an order can be processed for shipment, there is necessary information that needs to be collected on the End User (where the tritium exit signs will actually be installed). Learn more about Tritium Signs and their requirements at our "Tritium Exit Sign Resource Guide".



Can buying a new Exit Sign or Emergency Light save money on my energy bill?

Possibly. If you have an older unit, newer technologies (LED vs incandescent) usually require less watt consumption, helping to keep your energy bill lower. You may want to consider Power-Free Exit Signs like Tritium or Photoluminescent, or replacing the old lamps in your Emergency Light Fixture with LED lamps. For more Energy Saving Tips, visit our "Energy Saving Tips Resource Guide".

How do I know your products will work in the case of an emergency?

By law, all our Exit Signs and Emergency Lighting have been tested by a Nationally Recognized Testing Laboratory (NRTL). This certifies the product has been tested to meet or exceed all necessary standards set out by code. Learn more about these Certifications in our "NRTL Certifications Resource Guide"

What are the different types of Emergency lighting?

How Long Should Emergency Lights Stay On?

Understanding the Importance of Emergency Lighting Duration

As a business owner or site manager, you fully recognize the significance of emergency lighting. However, the specific duration that emergency lights should remain operational often raises questions.

This article aims to clarify all necessary aspects concerning emergency situations and the testing protocols involved.

The Critical Role of Emergency Lighting

While most individuals acknowledge the necessity of emergency lighting during crises, the finer details often escape notice. Emergency lighting is crucial for providing illumination when primary lighting systems fail. It ensures safe evacuations, minimizes panic, and helps emergency responders navigate through the premises effectively.

Emergency lighting is categorized into two types: emergency escape lighting and standby lighting. The former directs individuals towards exits, which is vital for life preservation, while the latter allows ongoing activities in a safely illuminated environment.

In the United Kingdom, emergency lighting is regulated by several laws, including the Regulatory Reform (Fire Safety) Order, making it mandatory for most commercial and public spaces. Guidelines such as those provided in BS help ensure compliance with these regulations, establishing strict standards for safety.

Duration Requirements for Emergency Lights

If you find yourself pondering how long should emergency lights stay on, you need to first consider the circumstances that necessitate their illumination — namely, emergencies.

Power outages, electrical system failures due to leaks, or fires that sever power lines are scenarios where emergency lights become essential. They serve to illuminate exit routes and provide well-lit signals clearly indicating safe passages.

Following an initial evacuation, emergency services may require access to your building in situations such as a fire. Consequently, emergency lights are usually mandated to remain operational for a period exceeding the evacuation duration. Given these factors, emergency lights should ideally remain functional for a minimum of three hours in the absence of mains power.

Types of Emergency Lighting Systems

Various emergency lighting systems exist, each tailored to meet specific needs during crises. Every type serves a distinct purpose and plays a key role in ensuring safety.

Escape Route Lighting

This form of lighting directs individuals towards exits, being strategically positioned in hallways, staircases, and near exits to assist navigation even in low visibility.

Standby Lighting

In contrast to emergency escape lighting, standby lighting facilitates normal operation during power outages. It is typically found in environments where safe work continuation is necessary, even amidst a blackout.

Open Area Lighting (Anti-panic Lighting)

This type of lighting reduces feelings of anxiety in expansive spaces, such as warehouses, ensuring occupants can identify escape routes without distress.

High-Risk Task Area Lighting

Installed in locations like laboratories and workshops, this lighting ensures visibility to safely conclude processes or handle hazardous materials during emergencies.

Each type of emergency lighting has specific duration mandates and maintenance requirements, collectively contributing to heightened safety during emergencies.

Testing Protocols for Emergency Lights

Beyond the aforementioned emergency scenarios, emergency lights must also be tested periodically. They should undergo thorough assessments in accordance with BS on at least an annual basis, including a comprehensive duration check confirming that lights can stay on for the required time—three hours in case of emergencies.

During these inspections, a qualified electrician should assess the entire emergency lighting system, identifying any potential issues and recommending repairs to ensure optimal performance.

Compliance and Regular Maintenance

In addition to the annual full-duration test, other periodic checks are required to uphold compliance. According to BS, monthly functional tests, which briefly activate the emergency lights to confirm each unit's operational status, should be conducted. These tests should be concise to safeguard battery life and prevent system malfunctions.

A partial duration test every six months is also advisable to verify system readiness. While shorter than the three-hour full test, it still suffices to highlight any underlying issues. Keeping a detailed logbook of tests, issues, and repairs is critical for adhering to safety regulations.

Ensuring Emergency Lights Meet Duration Requirements

Emergency lights activate only amid power interruptions, emphasizing the need to prepare them for long durations when they are needed. Regular testing is essential to ensure functionality. As previously suggested, an annual test is the minimum for ensuring the proper operation of emergency lighting systems. In areas prone to power outages or other hazards, more frequent testing might be prudent to maintain safety for all occupants.

Upgrading Emergency Lighting Systems

The landscape of emergency lighting technology is ever-evolving, with contemporary and more energy-efficient solutions becoming increasingly accessible. For instance, modern LED emergency lights are not only longer-lasting but also require far less maintenance in comparison to older models. Additionally, self-testing systems that operate wirelessly have gained traction, enabling businesses to oversee lighting efficiency and battery status remotely.

Businesses should routinely evaluate their emergency lighting needs, consulting experts like Volta Compliance to identify the most up-to-date solutions. Transitioning to a superior system can lead to energy savings, lowered maintenance expenditures, and bolstered safety—ultimately yielding significant returns on investment.

Engaging Professional Emergency Light Testing

The proficient and certified team at Volta Compliance is dedicated to ensuring safe settings for businesses throughout Leeds and neighboring regions. This includes expert emergency lighting testing to guarantee that your exit routes and escape paths are adequately illuminated whenever necessary.

Select Volta Compliance for your emergency light testing needs; our team adheres strictly to BS guidelines, ensuring compliance with legal safety standards. We will uncover any hidden problems, such as battery depletion, ensuring your emergency lights remain effective in critical scenarios.

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