Profile: Iota Engineering, LLC is a manufacturer of emergency lighting equipment, AC/DC power converters, and fluorescent DC inverter ballasts. Our product line includes emergency battery systems, inverter systems, inverter ballasts and power products. We offer battery pack options for T5 through T12 linear and long compact fluorescent lamp types, with lumen output ranging from 500-3000 lumens. Our ISL-28 fluorescent emergency ballast allows the same fixture to be used for both normal and emergency operation. In the event of a power failure, the ISL-28 switches to the emergency mode and operates one of the existing lamps for 90 minutes. The ISL-28 delivers high performance in a slim design. This unit is ideal for use in linear lighting fixtures where ballast compartment space is limited. The unit contains a battery, charger, and inverter circuit in a single can. The ISL-28 is UL listed for retrofit applications, and can be used with most 2'-4' T5 up to 28W, and T8 fluorescent lamps at an initial output of up to 500 lumens for one lamp.