The fire kills thousands of lives every year. In 1998 and 1999 alone, there were 4,035 and 3,570 civilian fire deaths in the United States. The most deadly fires often occur in industrial environments. In 1999, there were 17,500 fires in the industrial sector, an increase of 9.4% over 1998, resulting in the death of 120 civilians and a loss of $1.4 billion in property. In 1999, the industry was plagued by deadly industrial fires. For example, a fire broke out at a bolt factory in Marysville, Fla., in January, killing two workers. Then in February, a fire broke out at Rouge Steel in Dearborn, Michigan, killing several employees; a fire broke out at a conceptual science factory in Allentown, Pennsylvania, killing five people; a power plant in Kansas City, Missouri caused one person Death, 21 people were injured. Unfortunately, this list is still going on. This series of deadly fires has spurred a recovery in national fire safety and prevention awareness.

　　In the past decade, emergency lighting technology has been a significant advancement in the field of fire safety. Development of emergency lighting technology Ten years ago, most export signs used incandescent lamps. These lights last only about 5,000 hours and are less energy efficient. For normal operation, these lights need to be replaced twice a year. Neglecting this frequent maintenance can have devastating consequences. The shortcomings of incandescent emergency lighting have led to the replacement of fluorescent light sources. Although it provides a longer lamp life, lasts about 10,000 hours, and requires only annual maintenance, the operating cost of fluorescent lamps is high. Today's export logo uses light-emitting diodes (LEDs), which are the most economical and energy-efficient light source for more than 10 years.

　　Advantages of LED Emergency Lighting Systems Introduced in 1969, LED is a composite semiconductor device that converts electricity into light when biased forward. Today, advanced high-brightness LEDs are being installed in a variety of lighting applications. The advantages of LEDs include their compact size, low wattage, low heat, long life, uniform brightness and compatibility with integrated circuits. The LED emits red or green light depending on its chemical composition. Red is traditionally the preferred wavelength. Since red light is 6.5 times less than blue light scattering, it penetrates better in a smoke-filled environment. In recent years, the green export mark has been favored because the sensitivity of the human eye increases as the wavelength increases. The die-cast aluminum exit logo with LED light is reliable, sturdy and aesthetically pleasing. These basic features make exports ideal for a variety of applications, such as high-end buildings, educational institutions, and hazardous locations that require emergency lighting. These types of exit signs with LED lights do not generate heat and are suitable for wet locations, which is important because fire sprinkler systems are often activated.

　　Choosing an LED emergency lighting source does not perform the same operation for all LED lights. Eligibility to consider when selecting an emergency light source includes: * Al In Gap and Al Ga As. The first qualification is to choose the best form of LED light. Two types are most widely used in today's export mark market: Al In Gap and Allumium Gallium Arsinide (Al Ga As). The Al In Gap LED lamp, introduced in the 1990s, has a wavelength of 630 (nm) and provides extremely stable long-term light output. At 20 ma, the minimum intensity is 1,000 (mcd) and the typical intensity is 4,000 (mcd). The Al Ga As technology has a very high luminous efficiency and is capable of producing high light output. Introduced in the 1980s, its wavelength is 644 (nm), but its lifetime is shorter than Al In Gap LED technology. At 20 ma, the minimum intensity is 290 (mcd) and the typical intensity is 750 (mcd). * Self-diagnosis.

　　Unfortunately, research has shown that many emergency lighting systems are neither properly maintained nor inspected. In most emergency situations, the current power supply fails and a backup battery is needed to power the emergency system. These batteries may not work properly after a fire without regular maintenance. Self-diagnosis of emergency lighting is the easiest way to combat this neglect. This type of circuit typically monitors the voltage and function of a unit every 30 days, monitoring for 30 minutes every six months. Some products have an indicator light that tells you when to replace any defective parts. * laser light. Usually during a fire, the smoke obstructs the chevron direction indicator on the far exit sign.

　　Therefore, emergency laser technology was developed in 1998 and works with the export logo. With this new technology, some systems use approved 3a laser options to direct occupants into smoke. This lighting system activates the red laser beam in emergency mode and provides up to 40 feet of directional light depending on the intensity of the smoke. The laser beam can point to the exit path, which will guide you without hesitation before you are close enough to read the exit sign. Soon, laser lighting will be incorporated into more emergency products. In addition, the strobe function will be designed as an exit sign for the hearing impaired because they cannot hear the fire. * Tamper-proof and easy to install. Tamper protection and ease of installation are very important to the owner. Most emergency lighting systems use a vandal-proof lens on the exit face and are secured in place with tamper-resistant screws. This is especially important in college dorms where pranks are frequent. The new laser emergency system is also easy to install. First, the laser device is easy to install, and the installer can then rotate the laser beam eye 180 degrees to point to the exit.

　　The     Emergency Light Manufacturers     stated that most, if not all, of the future of emergency lighting has adopted some form of standard related to export signs and emergency lighting. They may contain national regulations such as the National Fire Protection Association (NFPA) or national building codes such as the Unified Building Code. Alternatively, they may need products tested by a third-party security certification company, such as Underwriters Laboratories Inc. (UL). The export mark listed as UL 924 complies with NFPA 101. In the past few years, some standards have become more stringent, but emergency lighting standards may be more stringent. Drive owners can upgrade their emergency lighting systems to more reliable LED light sources, driven by insurance companies offering lower premiums for buildings with the highest code standards.

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