Modern Emergency Lighting
What is Emergency Lighting?
By definition, emergency lighting is a battery-operated light that is programmed to come on any time the power fails in a large building. Most building codes require that these lights be installed in all new commercial and residential buildings, as well as schools, dormitories, and other spaces with large occupancy. Older buildings are also installing these systems since they are critically important for helping people escape from buildings safely.
Modern Emergency Lighting describes the type of lighting that is used in all high occupancy commercial, industrial or residential building. Every emergency lighting unit has reflectors that direct the focus of the light and intensify it. The actual source of the light can come from some type of incandescent light bulb, or from light emitting diode (LED) clusters.
The design of emergency lighting fixtures may place the reflectors behind the fixture, or the fixture may have a plastic covering over the lighting source. Individual emergency lighting units are typically designed so that the light can rotate, making it possible to redirect the light to any place where the light is needed most.
Recessed Or Surface Mount
Black or White Color
90 Minute Battery Back up
Emergency Light Batteries
Emergency light units use one of two types of batteries: lead acid, or NiCad.
Lead acid batteries are the oldest type of rechargeable battery in existence. The battery was invented by French physicist Gaston Plant in 1859. Their greatest advantage is that they are considerably less expensive than rechargeable batteries that use newer recharging technologies.
The specific type of lead acid battery that is used to supply power to emergency lighting systems is called a VLRA or Valve Regulated Lead Battery. It a type of sealed, maintenance free lead battery. Because it is sealed, its use isn't restricted to ventilated areas. It is often used in combination with UPS, also called uninterruptible power supply systems, as a way to provide back up energy during power failures.
NiCad or Ni-Cd is the abbreviation that refers to nickel-cadmium rechargeable batteries. The specific type of Ni-Cd battery that is used for battery backup in emergency lighting systems is a large ventilated wet cell maintenance-free Ni-Cd battery. Other terms for wet cell includes vented cell or flooded cell. These large batteries have a special low pressure release valve that isn't necessary on smaller Ni-Cd batteries. The greatest advantage of Ni-Cd batteries is their capacity for far greater energy density.
LED Emergency Lighting
LED or Light Emitting Diode light is also called solid state lighting because it produces light with the help of a solid object. Here, that solid object is a semi-conductor. Heads for emergency lights use one of two systems either wedge-base lamps or PAR Series systems. The greatest advantage of using LED emergency lighting is the fact that unlike incandescent lights, LED lights don't generate heat and aren't hot to the touch. They typically only use between 6 and 12 volts, and that low voltage lessens the load on the circuits to which the lights are hard wired. The fact that they consume so much less power also makes it possible to provide the backup power with smaller batteries.