The I-42-EM-A from Iota Engineering is a CFL Emergency Ballast designed to enable you to use your current fixture as both normal and emergency lighting. This specific product is built so that it is suitable for use in damp locations. During a power outage this Compact Fluorescent Back-up Battery Transformer will continue to run one or two of your existing lamps for up to 90 minutes, and is compatible with most 10W-42W twin, triple, quad tube, 2D and Straight 4-pin compact fluorescent lamps and 18W-36W long compacts. It comes with a test switch and charge indicator kit and utilizes AC output so it is compatible with most new lamp technologies.
If you handle the lighting in any commercial, industrial or institutional environments you should already be aware that emergency lighting is a legal requirement. The Iota I-42-EM-A not only has the ability to run one or two lamps at up to 650 Initial Lumens for 90 minutes during emergency conditions, but is also very easy to install. The battery, charger and inverter circuit are all housed in one can making it nice and compact, and also comes with flex for wiring it to the fixture or ballast compartment. The unit is both UL and CUL listed and comes backed up with a 5 year warranty so you know it is a product of the best quality.