PRODUCT FEATURES Compact, low-profile design. Energy consumption of less than 3 watts for AC only and less than 5 watts for battery backup units. Emergency battery backup model (EM) is completely self-contained. Infield installable directional indicators. Standard AC and emergency units available. AC on indicator light and test switch (EM units only) Sealed lead battery on emergency (EM) units. 120/277 Volt Operation. 5 year pro-rated warranty on battery
BATTERY BACK-UP FEATURES Trickle charge circuitry for extended battery life Overcharge protection provided by zener diode Test button and LED AC/DC indicator conveniently located for easy testing and visual inspection Low voltage disconnect eliminates deep discharge Brown-out protection UL recognized maintenance-free lead acid battery ETL listed 90 minute emergency run time.