Quick and easy installation by virtually anyone. No costly wiring.
	No Power, only ambient room lighting to charge them up.
	No bulbs, No LED's, No chargers, No batteries, No inventory, No testing, No record keeping.
	No periodic replacement.

	Visible for over 8 hours after power failure, and 24 hours under certain conditions*
	Require only 10 minutes to recharge after a power outage, for buildings to be reoccupied.
	The brighter the room lighting charging them up, the brighter they are when the power is off.
*	Visibility testing of photoluminescent EXIT signs has traditionally been done after the eye has been conditioned to the dark, usually for 20 minutes. Egress Dynamics performs visibility tests after only 2 minutes. This is a more realistic time duration, and provides for ensuring the best performing Life-Safety product, and eliminates the acceptance of "novelty type" EXIT signs.

CAUTION: Min 5 ft-candle external fluorescent illumination must be present on sign face at all times of building occupancy.

	Costly wiring, run from the sign to the fuse box, and must be installed by licensed electricians.
	Power at all times and generators to back-up the power.
	Light bulbs or LED's to replace and to keep in stock.
	Battery Chargers that need testing and maintenance
	Batteries to test, keep in stock, replace, and dispose of. They are an environmental hazard.
	Monthly testing and record keeping.
	Periodic replacement as they become old, discolored, dysfunctional, unsightly and a hazard.

	Only 90 minute visibility for battery - backup EXIT signs, after power failure.
	In the event of an extended power outage battery backup systems require hours to recharge after the power returns, assuming that the charger and batteries are properly functioning.
	And buildings cannot be reoccupied until the batteries are fully charged.