The iota ilb cp05 is a ul listed led emergency driver that allows the same led fixture to be used for both normal and emergency operation. In the event of a power failure, the ilb cp05 switches to the emergency mode and operates the existing fixture for 90 minutes. The unit contains a battery, charger, and converter circuit in a single can and is available in different mounting configurations for individual fixture requirements. The constant power design of the ilb cp05 maintains the output wattage to the led array even as the system voltage diminishes.