Emergency Lighting Testing Cambridgeshire (EML)
TISS Electrical carry out certified emergency light testing across Cambridgeshire, covering the monthly flick test and annual 3 hour discharge test required under BS 5266-1 for offices, schools, warehouses and public buildings. Cambridgeshire's coverage spans everywhere from Cambridge's historic centre and science parks to Fenland market towns like Wisbech and March, and our engineers plan every visit around the actual site rather than a standard checklist. Every test is verified with a clear written report, so your compliance records hold up under any inspection.
TISS Electrical carry out certified emergency light testing (EML) across Cambridgeshire, keeping offices, schools, warehouses and public buildings compliant with BS 5266-1 throughout the year.
Cambridgeshire covers a lot of ground, from Cambridge’s historic colleges and science parks to Fenland market towns like Ely, Wisbech and March, and out to fast growing communities like Cambourne and Waterbeach. A listed building in the city centre and a warehouse out in the Fens need different testing approaches, and our engineers plan each visit around the actual site rather than treating every job the same.
Get in touch through our contact form and we’ll confirm exactly what your Cambridgeshire premises needs and when your next test is due.
Why Emergency Lighting Is Not Just Another Box To Tick

Emergency lighting exists to help people see and leave safely when normal lighting fails. When the mains supply drops, these lights should activate quickly and stay on long enough for everyone to evacuate the building.
It is a legal requirement under BS 5266-1, the Building Regulations and the Regulatory Reform Fire Safety Order 2005. If you manage an office, warehouse, school, healthcare site or hospitality venue anywhere in Cambridgeshire, this applies to your premises. We help you meet that responsibility clearly and without confusion.
What Does EML Testing Actually Involve?
Many business owners assume emergency lighting either works or it does not. In reality it is the battery and control system behind each fitting that most commonly fails over time, often with no visible warning at all.
Our qualified engineers carry out full functional testing across your site and provide clear written reports showing exactly what was checked and whether anything needs attention.
What We Check During Testing
- Whether each light activates when the power fails
- Whether batteries are holding charge correctly
- Whether fittings are in good physical condition
- Whether exit signs are clear and fully visible
- Whether your records are current and inspection ready
How Often Should Emergency Lighting Be Tested?
BS 5266-1 requires two levels of testing for commercial premises in Cambridgeshire. Both are mandatory and one cannot substitute for the other.
The Monthly Flick Test
Each month a short test is carried out to simulate a mains power failure. Every light should come on and stay lit. The results must be recorded every time without exception. If anything fails it needs to be reported and resolved promptly.
We can handle your monthly testing so it never gets missed and your records stay up to date.
The Annual Three Hour Test
Once a year the system must run for a full 3 hours without mains power. This confirms the batteries will last long enough in a real emergency situation. Any fitting that does not make the full 3 hours must be repaired or replaced before the system can be signed off as compliant.
We schedule this around your working hours so your Cambridgeshire site is never left without lighting during the working day.
Who Should Carry Out EML Testing?
Emergency lighting is a life safety system. Formal testing must only be carried out by trained and certified engineers who understand exactly what they are looking for.
Our engineers are fully qualified and complete annual refresher training to stay current with BS 5266-1 and current fire safety regulations. When we test your emergency lighting it is done properly and documented in a way that will hold up under any inspection.
What Happens If A Fitting Fails Its Test?
Not every fitting passes first time, and that is exactly why testing matters. When something fails, whether it is a light that will not activate or a battery that cannot hold its charge for the full duration, it goes straight into your written report so there is no ambiguity about what needs fixing.
We will not sign a system off as compliant while a known fault sits unresolved. Depending on what we find, that might mean a simple repair or a full replacement, and we will explain which one makes sense and why before any work goes ahead.
Your test record has to show the full picture, failures included, since that is what stands behind your fire risk assessment if it is ever checked.
Why Businesses Across Cambridgeshire Choose Us
Managing compliance alongside running a business takes time you don’t always have. Keeping on top of testing schedules, maintaining accurate records and knowing what to do when something fails all takes attention. We handle all of it for you.
Our engineers work regularly across Cambridge, Peterborough, Ely, Huntingdon, St Neots, Wisbech, St Ives, March, Soham, Cambourne, Cottenham, Burwell, Great Shelford, Sawston, Histon, Fulbourn, Linton, Waterbeach, Balsham, Bar Hill, Milton and Teversham.
Speak To A Cambridgeshire Engineer
What Every EML Testing Visit Includes
Here is what every EML testing visit with TISS Electrical includes.
- Qualified Engineers carrying out all testing on site
- A clear written report and emergency lighting test certificate after every visit
- Honest advice if any fittings need attention or upgrading
- Ongoing support to keep your fire safety records inspection ready
If something needs fixing we will tell you exactly what it is and why it matters. We can also combine your annual emergency light test with ITEE testing in a single visit, reducing disruption and keeping your compliance costs down.
Is Your Emergency Lighting Due For Testing?
If you cannot remember the last time your emergency lighting was tested, it almost certainly needs attention.
Get in touch with TISS Electrical today. We will explain what is required, arrange testing at a time that works for your Cambridgeshire business and make sure your site is properly covered.