The ELDW (ELDWC for cold weather applications) option is an integral emergency battery pack that operates compact fluorescent lamps at a reduced lumen output for a minimum of 90 minutes. When AC power is restored, the ELDW returns to charging mode and will be completely recharged in 24 hours. ELDWR, a remote version of this battery pack, is also available with the Architectural Sconce Series. 

• Indicator light and test switch provided with the fixture.
       - When AC power is applied, the indicator light is illuminated.
       - The test switch provides a means for checking the emergency battery pack to make sure that it is functioning properly. 
  
• No routine maintenance is required to keep the emergency battery pack functional
• It is required that the emergency operation be tested at 30-day intervals for a minimum of 30 seconds and that a 90-minute discharge test be completed once a year.
• UL Listed for wet locations
• ELDW rated to operate in ambient temperatures as low as 32°F (0°C).
• These battery packs have a life expectancy of seven to 10 years.
• ELDWC option operates in ambient temperatures as low as 0°F (-18°C)

The amount of emergency illumination provided is dependent upon the number, wattage and type of lamps selected, and the lamp manufacturer. Initial emergency illumination provided is typically 350 to 1250 lumens (refer to chart below for specific lamp types). With an ELDW or ELDWR battery pack, if (2) 26-watt lamps are selected, light output is evenly divided between the lamps for 725 total lumens. When the ELDWC battery pack is selected, only one lamp will be illuminated in emergency back-up mode.