Best Lighting BAL1400LPTD Fluorescent Emergency Ballast, 120/277V, 3.1W$$Tools & Hardware Other

EM Ballast 120/277V 3.1-Watt Sealed-in lithium power supply; no battery replacement required over the 10 year life of the alarm; eliminates worry about battery removal or unauthorized deactivation;Kidde i9010 automatically activates when attached to the mounting bracket;Rapidly flashing LED alerts user if the alarm has sounded since the last time the test/reset button was used;Will temporarily silence nuisance alarms and will not allow hush mode to be activated unless the unit is in alarm mode;Tests unit's circuit operation and resets memory after an alarm condition occurs;End of Life warning: Kidde smoke alarm chirps every 40-45 seconds indicating it's in need of replacement;Tamper-resistant (when activated upon installation) effective in preventing someone from removing the Kidde i9010 from the mounting bracket.