Convert your Phoebe LED Verona bulkhead to a maintained emergency light fitting easily and quickly with this plug-and-play 3-hour emergency driver with a self-test and manual test button.Features a replaceable LiFePO4 1.8Ah 3.2V battery.To install, simply open the front cover of your Phoebe LED bulkhead, push the driver into place, connect the plug-and-play wires, and push the LED indicator light into place.The emergency driver can be used in conjunction with the optional microwave sensor to create a complete 3-hour emergency and microwave sensor bulkhead.