We are offering emergency light. Brighto family of products are energy efficient led based 247 lights. These lights have in-built battery in addition to the three level lighting option. Brighto 121 is a 1.7 watts led 247 light with 24 leds and in-built lead acidlithium ion battery, and mains adaptor. Features mains smps adaptor provided. Single tact switch for multiple modes. In-built lead acid lithium ion battery system. Three levels lighting possible for energy conservation.