Tritium Exit Sign: Self-Luminous Sign requires NO EXTERNAL POWER!
NO BATTERIES - NO MAINTENANCE - NO EXTERNAL POWER! This
TRITIUM EXIT SIGN is complete self contained. No cost operation and a secure sealed hosing makes this unit a must when a power source or operation costs are an issue. Models are sold with two power source types: 10 and 20 years - meaning one unit can last as long as 2 decades!
