we are offering emergency light system.they are emergency lighting system that works as wireless ups. It is controlled by a remoteflash light which is pluuged into the power socket which detects power outage and sends a wireless signal to other ready bright lights to switch on during power failure and off otherwise. It has a range of about 70 feet. All ready bright lights will turn off after 30 minutes to conserve energy. Quality led's provide 40 hours of light on one set of batteries.