Emergency Lighting Testing Requirements: Monthly and Annual Tests Under BS 5266-1:2025
Emergency lighting has to work the moment the normal supply fails, often after months of standing idle. Regular testing is the only way to know the batteries, lamps and changeover devices will perform. The requirements below follow BS 5266-1:2025 and BS EN 50172.
Monthly function test
Every emergency luminaire and exit sign is switched to emergency mode for a short period, long enough to confirm each lamp lights, without draining the batteries. The test is usually carried out by simulating a failure of the normal lighting supply with a test key switch. Results go in the logbook.
Annual full-duration test
Once a year every fitting must run for its full rated duration, usually three hours, and still be lit at the end. Because batteries need up to 24 hours to recharge, the annual test is best carried out out of hours or in alternate zones so the building is never left without cover.
What your logbook should contain
- Dates and results of every monthly and annual test.
- Details of any failures and the date they were rectified.
- Alterations to the system and the as-fitted drawings.
- The periodic inspection and test certificate.
Who needs emergency lighting tests?
Any non-domestic premises where the fire risk assessment identifies the need for emergency escape lighting, including offices, shops, schools, care homes, warehouses and the common parts of HMOs and residential blocks. The Responsible Person under the Regulatory Reform (Fire Safety) Order 2005 is accountable for it.
Book emergency lighting testing
We carry out annual duration tests, issue certificates and repair failed fittings at fixed prices. Emergency lighting testing near you → · Fire alarm servicing requirements
Frequently asked questions
How often should emergency lighting be tested?
A short function test every month and a full rated-duration test, usually three hours, every year, recorded in the logbook.
Can I do the monthly emergency lighting test myself?
Yes, a trained member of staff can carry out the monthly function test. The annual duration test and certificate should be completed by a competent person.
Which standard covers emergency lighting testing?
BS 5266-1:2025 together with BS EN 50172.