The Merit Lighting PL-924 Series Photoluminescent Exit sign uses a class of newly developed phosphorescent (glow-in-the-dark) pigments which are based on Strontium Oxide Aluminate chemistry.   They are drastically different from conventional phosphorescent pigments that are either based on Zinc Sulfide or on radio-isotopes for their self-luminous properties.

• Afterglow period is 10 times current ZnS based phosphorescent pigments
• Initial afterglow brightness is up to 10 times greater than current radio-luminescent or standard ZnS photoluminescent pigments
• Free of hazardous and radioactive substances

These pigments glow virtually all night long.1

• No Wiring
• No Lamps to continually replace
• No Batteries or Chargers to maintain and replace
• No Electricity cost
• Easily Movable as paths of egress change

The Merit Lighting PL-924-75 Series conforms to U.L Standard 924, 9th edition, 02/24/2006

 

1Time to extinction, defined as emission levels of 0.32 mcd/m² or below, is 2000 minutes when excited with a D65 light source at 200 lux for 4 minutes.