Lamp 921 - 12 volt 18 watt (3 bulbs per pkg)

Battery Backup- This unit is wired to your buildings electricity and includes a Battery for Backup Power. When your buildings power fails, the included battery will provide a minimum of 90 minutes illumination. This unit is shipped with the battery NOT CONNECTED so as to not drain during shipment and storage. You must connect the battery to the Circuit Board during installation (see included instructions).

Battery Backup + Self Testing- A Self Diagnostic unit will automatically execute the required monthly and annual tests without having to manually push and hold the test button. It will alert to any issues with the multi color LED indicator.

AC Only- This unit connects to your buildings electricity and will not have a Battery for Backup Power. An AC ONLY unit is for use with an inverter or backup generator systems.

Dual Circuit- A dual circuit unit is an extension of AC Only and has a second transformer and set of input wires allowing for attachment to a second circuit (generator or inverter system).

Battery Backup- This unit is wired to your buildings electricity and includes a Battery for Backup Power. When your buildings power fails, the included battery will provide a minimum of 90 minutes illumination. This unit is shipped with the battery NOT CONNECTED so as to not drain the battery. You must connect the battery to the Circuit Board during installation (see included instructions).

Battery Backup + Self Testing- A Self Diagnostic unit will automatically execute the required monthly and annual tests without having to manually push and hold the test button.

Battery Backup + Remote Head Capable- Remote Head Capable units allow you to connect compatible (same voltage) Remote Heads for more emergency lighting.