Monthly Tests – Every month, you should isolate the mains power supply to your lighting system, in order to simulate a power cut.If you have one of these systems, you do not need to perform any daily checks. Instead, they have a separate battery for each light. The majority of emergency lighting systems do not use a central battery. Assuming that everything is fine, you can leave the more detailed testing until the next monthly or annual test date. All this test entails is checking the relevant indicator light to see whether anything is amiss. Daily Tests – If you have an emergency lighting system with a central battery, you should perform a daily check to make sure the battery is functioning as intended.This includes daily, monthly and annual tests, as detailed below. Leading fire safety experts recommend that you follow a 3-frequency testing schedule for all emergency lighting systems and fixtures.