It is essentiall that emergency lighting works if the normal lighting fails.
Regular inspection of emergency lighting  is essential, to ensure correct operation, compliance with current regulations and insurance requirements.  Any faults discovered during maintenance should be recorded in an Emergency Lighting Logbook.  This forms part of your Fire Risk Assessment.

We can provide a scheduled programme of testing to ensure compliance with relevant legilastion.  This is usually :

Six monthly  Simulated  mains failure for a continuous period of one hour.

Three yearly  Simulate a mains failure for the full rated duration of the luminaire. Each emergency lighting installation should be tested and inspected to ascertain compliance with BS5266 Part I.

Self contained systems Test yearly for the full duration.
During each test, the lights should be checked for correct operation. After testing, the supply should be restored and then checked to ensure the system is charging correctly.