20W Emergency LED Driver, 100–347V AC Input, 170V DC Output, 90-Min Backup

The D-EM-20W is an emergency LED driver that supplies backup power to LED luminaires during an AC power failure. It is intended for panel lights, troffers, linear fixtures and high-bay luminaires listed for dry and damp locations, and connects to both 0-10V dimmable fixtures and non-dimmable LED lamps. Input is 100–347V AC, 50/60 Hz at 0.1 A max, and the unit delivers a 170V DC output for 90 minutes of emergency operation. It supports 0-10V dimmable fixtures up to 100W, or LED lamps up to 20W without dimming. Ambient operating range is 5°C to 50°C with a maximum mounting height of 27.2 ft. The case measures 12.99 in x 1.97 in x 0.93 in on 12.48 in mounting centers, and an integral test button is provided. An unswitched AC source is required. The Li-ion battery pack carries a 5-year warranty. Initial commissioning requires a charge cycle of more than 24 hours to activate all battery cells; stored units should be recharged every 6 months and installed within one year.