120-277 Constant Voltage 12W LED Emergency Back-Up Driver by Keystone

This constant voltage emergency backup driver provides a 90-minute minimum of 12 Watts of LED power. Equipped with short circuit overload and open load protection. Rated for use in dry and damp locations, indoors and outdoors. Driver has a test switch and charge indicator light. Ideal for use in hospitals and healthcare facilities, offices, schools and universities, shopping malls, and other public buildings.