The Reasons

The Pentagon, September 11, 2001.

American Airlines flight 77 slams into the Pentagon. Backup emergency lights were destroyed. Absolute darkness.

The East Coast Blackout, August 14, 2003.

Major population centers lost power today for many hours. Millions of people were left in the dark. Thousands were caught in subways, in elevators, in basements, in interior offices, and in other places where existing emergency lighting systems were not adequate. We can only imagine what would have happened if this had occurred at night.

After-GloTechnology
After-glo bulbs combine a high-spectrum, scotopic-rich phosphor blend with a stronium aluminate(non-radioactive) after-glo phosphor blend in a discharge fluorescent tube. These bulbs have been designed to maximize and compliment the eye's ability to see under low light conditions. The combination of this scotopic-rich phosphor blend and the afterglow phosphor blend compliment each other in many ways: visual acuity, scotopic eye response, high-spectrum color correctness, melatonin reduction, energy efficiency, and quicker emergency response time in low light levels. The after-glo phosphors are fully charged in just 15 minutes and partially charged immediately when turned on. The after-glo light output will continue for a period of time after power is cut off (approximately 1 hours of high intensity glow and up to 12 hours of lower glow). Even if the bulb is broken and the gas is released, the pieces on the floor will continue to emit light, maximizing this emergency lighting bulb to its greatest potential. The bulb, when charged, can be removed from the fixture and will continue to glow, and can be used as a portable emergency light source.

Emergency Eye Response
The rods of the eye require approximately sixty (60) minutes (or longer) to fully dark-adapt. The after-glo scotopic phosphor blend places the eye in a state of emergency readiness by engaging the stimulation of the rod receptors in the eye. The eye is then operating under higher scotopic light levels. The amount of dilation and rod receptor stimulation under this scotopic blend prepares the eye to respond to the lower light levels of the afterglow phosphor blend, which is primarily scotopic light and has a low light response curve of approximately 490nm when the lamp power is turned off. Therefore, human response time is critically reduced in an emergency.

Areas of Use
Employees and customers can be in many different places in a building when an emergency strikes. Offices, restrooms, basements, parking garages, hallways, elevators and storerooms are just a few examples. Battery powered backup lighting systems may work in these areas but are very costly. They need maintenance, and even then, they can still break down. In the event of an explosion, they can fail. The after-glo bulbs are an added measure of safety and protection and can be economically justified in areas where costly battery backup emergency lighting cannot. With the after-glo bulbs, you can always count on them to emit light.

FEATURES INCLUDE Standard and custom sizes Afterglow phosphor blend Non-radioactive 490nm Peak Emission 15 minute full charge time Immediate partial charge time 1 hour bright useful afterglow range 12 hour total afterglow range High spectrum primary phosphor 2.0 scotopic to photopic ratio 86 C.R.I. 5000 °K Brighter lumen output Color corrected skin tones Patented THE After-glo DIFFERENCE The After-glo blend was designed and developed by a team of lighting experts and led by one of the inventors of full spectrum lighting. Years of research, development and testing went into creating this blend of natural sunlight in a light bulb through proper color rendering, high spectrum color temperature and chromaticity. We are proud to take our Phosphor Glow? technology and combine it into our After-glo high spectrum light bulbs.

COMPARE AND SEE THE DIFFERENCE We invite you to compare the difference of natural outdoor light, After-glo fluorescent light and ordinary fluorescent light. By reviewing these spectral distribution charts you can see how close After-glo "brings the natural goodness of sunshine indoors." SPECTRAL DISTRIBUTION COMPARISONS