20W Emergency Battery Driver, 90+ Min Runtime, 100–277V Input

The D-EMS-20W is a 20W emergency battery driver designed to maintain illumination during power outages, making it suitable for commercial and industrial lighting applications where code-compliant emergency egress lighting is required. The driver operates on 100–277V AC input and delivers 18–54V DC output at 20W, with a minimum 90-minute emergency runtime powered by an integrated lithium-ion battery. Recharge time is rated at 36 hours. The unit is rated for operating temperatures from 0°C to 50°C and includes LELV protection. Physical dimensions are 17.14 in. (L) × 2.13 in. (W) × 1.57 in. (H).