The I320 From Iota Engineering Is A Ul Listed Fluorescent Emergency Ballast That Allows The Same Fixture to Be Used For Both Normal and Emergency Operation. In The Event Of A Power Failure, The I320 Switches to The Emergency Mode and Operates One Of The Existing Lamps For 90 Minutes. The Unit Contains A Battery, Charger, and Inverter Circuit In A Single Can, and Can Be Mounted In The Wireway or On Top Of The Fixture. The I320 Can Be Used With Most 2'-4' T8 Lamps and 2'-4' 14W to 54W T5 Lamps With An Initia