If you repair, restore or manufacture light fittings, electrical safety testing is an essential part of your work.
Whether you're rewiring an antique table lamp, restoring a chandelier or making a bespoke pendant, you need to establish that the finished fitting is safe before it goes back into use or is supplied to a customer.
But not every fitting requires the same testing procedure. Repairing an existing lamp, manufacturing a new luminaire and carrying out routine portable appliance testing are three different situations.
At Lampfix, we work with lighting repairs, restoration and bespoke assembly, and supply specialist components to lighting workshops and manufacturers throughout the UK.
This guide explains the main electrical safety considerations, what the different types of testing involve, and what to consider when choosing suitable test equipment.
1. Which light fittings does this guide cover?
This guide focuses on common mains-powered light fittings, including:
Table and floor lamps
Chandeliers
Pendant lights
Wall lights
Other decorative and specialist light fittings
These may be existing fittings being repaired or restored, or new products being assembled for sale.
An important starting point is understanding whether the fitting is Class I or Class II.
Class I — Earthed fittings
Class I fittings use protective earthing as part of their protection against electric shock.
They commonly have live, neutral and earth conductors. Accessible conductive parts that require protective earthing must be correctly connected to the protective-earth system.
Many traditional metal light fittings use Class I construction.
Class II — Double-insulated fittings
Class II fittings use double or reinforced insulation to provide protection against electric shock without relying on a protective-earth connection.
They are generally identified by the double-square Class II symbol.
A fitting is not automatically Class II simply because it has a two-core cable or no earth connection. The complete design and construction must satisfy the relevant requirements.
The distinction matters because it affects both how a light fitting is constructed and the electrical tests that are appropriate.
2. Are you repairing a fitting or manufacturing a new one?
This is one of the most important questions to establish before choosing a testing procedure.
Repairing an existing light fitting
If you're replacing damaged flex, a worn lampholder or another component on an existing fitting, you need to establish that the work has been completed safely.
The appropriate inspection and testing will depend on the construction of the fitting, its condition and the work carried out.
Example: Rewiring an antique table lamp
Imagine a customer brings you an old brass table lamp with deteriorated wiring.
You may need to replace the cable, lampholder and plug, check cable restraint and determine whether the metal parts require protective earthing.
Once the work is complete, the fitting needs appropriate inspection and electrical safety testing before being returned to the customer.
Simply checking that the bulb illuminates is not sufficient.
A straightforward repair using suitable replacement parts does not necessarily make the fitting a newly manufactured product. However, substantial changes to its original design, performance or intended use can introduce additional compliance responsibilities.
Manufacturing a new light fitting
If you're assembling new light fittings for sale, your responsibilities extend beyond checking that they illuminate correctly or pass an individual electrical test.
Example: Manufacturing a bespoke pendant
Suppose you're assembling pendant lights using a metal ceiling rose, decorative flex and metal lampholder.
You need to consider more than the electrical connections. The finished design also needs appropriate mechanical support, cable restraint, suitable insulation, earthing where required, thermal performance and component compatibility.
The completed product must meet the legislation applicable to it.
Depending on the product and market, responsibilities may include:
Safe design and construction
Selection of suitable components
Appropriate inspection and testing
Technical documentation and risk assessment
Product markings and instructions
Declaration of conformity
Traceability and retention of relevant records
In Great Britain, the Electrical Equipment (Safety) Regulations 2016 are particularly relevant to many mains-powered lighting products.
For electrical equipment covered by these regulations, either CE or UKCA marking can be used for the Great Britain market, provided the applicable requirements are satisfied. Products supplied to Northern Ireland or the European Economic Area may have different marking requirements.
The key distinction is that passing an electrical test does not, by itself, demonstrate that a newly manufactured luminaire complies with every applicable product safety requirement.
3. Do you need qualifications to test light fittings?
There isn't one qualification that covers every type of electrical safety testing.
What matters is that the person undertaking the work is competent for the particular tasks and tests involved.
That means having sufficient knowledge, training and practical experience to:
Understand the fitting's electrical construction and protection
Identify potential safety defects
Select the appropriate inspection and testing procedure
Operate the required equipment safely
Interpret the results correctly
Recognise when further investigation or corrective work is necessary
A portable appliance testing (PAT) course can be a useful starting point for some types of inspection and testing.
However, PAT training alone does not necessarily establish competence to undertake luminaire production testing, high-voltage testing or all aspects of electrical construction and compliance.
If you're establishing a lighting workshop, obtain training appropriate to the fittings you work on and the work you intend to carry out.
Where work also involves a building's fixed electrical installation, additional requirements may apply.
4. How should light fittings be tested for electrical safety?
A suitable testing procedure starts with understanding the fitting and the requirements that apply.
For newly manufactured luminaires, an important reference is BS EN IEC 60598-1:2024+A11:2024 — Luminaires: General requirements and tests, together with the relevant product-specific standards.
The correct tests, methods and acceptance criteria depend on the product and applicable requirements.
The following stages provide an overview rather than a complete testing procedure.
Step 1 — Visual inspection
Always begin with a thorough visual inspection.
Look for:
Damaged cables or insulation
Exposed conductors
Damaged or unsuitable lampholders
Loose or insecure connections
Inadequate cable restraint or strain relief
Signs of overheating
Unsuitable or poorly secured components
Sharp edges that could damage wiring
Potential problems with the suspension or mechanical construction
For repaired fittings, pay particular attention to the components and areas that have been worked on, while also assessing the general condition of the fitting.
For new products, consider the construction as a whole.
Electrical testing should never replace careful visual inspection. Some important safety defects will not be revealed by an instrument test.
Step 2 — Protective-earth continuity
For Class I fittings, appropriate testing is used to verify the integrity of the protective-earth connection.
This helps establish that the conductive parts requiring protective earthing are correctly connected.
The test method, current and acceptable results must be determined from the applicable standard and testing procedure.
A Class II fitting does not rely on protective earthing, so a Class I protective-earth continuity test is not applicable to its construction.
Step 3 — Insulation and electrical-strength testing
Insulation testing helps assess the integrity of electrical insulation, as appropriate to the particular fitting.
Some manufacturing procedures also require dielectric-strength testing, sometimes known as high-voltage or flash testing.
These are different tests, and flash testing is not automatically required for every repaired light fitting.
The appropriate method depends on the equipment, its construction and the applicable standard.
Particular care is required where a fitting contains electronic components, such as LED drivers, controlgear or other sensitive circuitry. An unsuitable test procedure may damage components or produce misleading results.
High-voltage testing presents serious hazards and must only be carried out by competent personnel using suitable equipment and controlled procedures.
Step 4 — Wiring and functional checks
The appropriate checks may include:
Verification of wiring connections
Polarity checks where applicable
Switching operation
General functional operation
A light fitting may illuminate normally despite having a significant electrical safety defect.
For that reason, a successful functional test does not replace the necessary safety inspections and tests.
Fixed and portable fittings may also require different testing arrangements.
Step 5 — Record the results
Once the appropriate inspections and tests have been completed, record the results in a way that identifies the fitting and the work carried out.
For a professional workshop, useful records can include:
Identification of the fitting
Date of inspection and testing
Work completed
Tests performed and results obtained
Relevant testing equipment
Person responsible
If a fitting fails a required inspection or test, the cause must be investigated and corrected before it is released.
A PAT label may be useful for identifying equipment that has been inspected or tested, but it is not universally required by law. Nor does it replace technical documentation or evidence of product conformity.
5. Is PAT testing the same as production testing?
No. The two are often confused, particularly by people starting a small lighting business.
PAT testing generally refers to the inspection and testing of portable electrical equipment to help establish that it remains safe in use.
Production testing forms part of a manufacturer's arrangements for ensuring that finished products meet the applicable requirements.
Testing following a repair must be appropriate to the existing fitting and the work undertaken.
Although individual electrical tests may be similar, the purpose and legal responsibilities are not necessarily the same.
For example:
An antique table lamp being rewired: The repairer needs to inspect and test the fitting appropriately before returning it to the customer.
A new batch of pendant lights being manufactured: The manufacturer needs to establish conformity of the design and finished products with the applicable requirements, including appropriate production checks and technical documentation.
A portable lamp already in workplace use: Its owner or operator needs to maintain it safely. Appropriate inspection and testing may form part of that maintenance, with the frequency determined by risk.
The Health and Safety Executive makes clear that UK law does not require every portable appliance to undergo annual PAT testing.
The important requirement is that equipment is maintained safely, with inspection and testing appropriate to the circumstances.
If you're manufacturing light fittings for resale, do not rely on a PAT pass alone as evidence of full product compliance.
6. What electrical testing equipment do you need?
There are several established manufacturers of electrical test equipment, including:
Seaward
Megger
Martindale
Metrel
At Lampfix, we have experience with Clare testing equipment, associated with Seaward.
However, the most suitable testing equipment depends on your business and the work you undertake.
Before purchasing a tester, consider the following questions.
What are you testing?
A workshop repairing occasional portable table lamps may need a different testing arrangement from a manufacturer producing batches of chandeliers, fixed luminaires or bespoke pendants.
Which tests are required?
Not all electrical testers provide the same functions.
Check whether the equipment supports the test methods required for the fittings you work on, rather than buying solely on the number of available features.
How will you use it safely?
Consider suitable connections, test fixtures, operator protection and training.
This is particularly important where high-voltage electrical-strength testing forms part of the procedure.
How will you maintain the equipment?
Allow for calibration or verification as recommended by the equipment manufacturer and your testing arrangements.
Your workshop should be able to establish that the equipment is suitable for use and producing reliable results.
How much should you budget?
Testing equipment ranges from relatively straightforward portable appliance testers to specialist production-testing systems.
Rather than relying on fixed prices, obtain current quotations for equipment that meets your particular requirements.
Remember to include the costs of training, accessories, test fixtures and ongoing calibration or verification.
If you're only testing a small number of fittings, it may be worth comparing the cost of suitable in-house equipment and training against using a competent external testing provider.
7. Frequently asked questions
Does a rewired lamp need a PAT test?
A rewired lamp needs appropriate inspection and electrical safety testing before it is returned to use.
Whether a particular PAT procedure is suitable depends on the lamp, the work undertaken and the circumstances.
A PAT label alone does not demonstrate that every aspect of a repair has been completed safely.
Can you PAT test a chandelier?
The inspection and testing arrangements depend on whether the chandelier is a portable item, a fixed luminaire or a fitting being assessed in a workshop.
A fixed chandelier should not automatically be treated in the same way as a portable table lamp.
Work involving its connection to a building's electrical installation may also require appropriate installation inspection and testing.
Does every repaired fitting need flash testing?
No. High-voltage electrical-strength testing is not a universal requirement for every repair.
The correct tests must be selected according to the construction of the fitting, the work undertaken and the applicable requirements.
Does passing a PAT test mean a light fitting can be CE or UKCA marked?
No.
CE and UKCA marking relate to the applicable product conformity requirements.
A PAT pass does not, by itself, establish that a newly manufactured product satisfies the legislation and standards relevant to its design and manufacture.
8. Where can you find more information?
Electrical safety testing and product compliance are areas where it's important to refer to authoritative, current guidance.
These are useful starting points.
Health and Safety Executive — Portable Appliance Testing
Practical guidance on inspection, testing, competence and common misunderstandings about PAT requirements.
GOV.UK — Electrical Equipment (Safety) Regulations 2016
Official guidance covering the responsibilities of manufacturers and other businesses placing electrical equipment on the Great Britain market.
British Standards Institution — BS EN IEC 60598-1
Information on the general safety requirements for luminaires. The relevant product-specific standards should also be considered.
For individual products or unusual constructions, obtain competent technical advice rather than relying solely on general guidance.
9. Need components for your lighting work?
Getting the electrical construction right starts with selecting suitable components.
At Lampfix, we help professional lighting restorers, specialist makers and manufacturers identify and source unusual or difficult-to-find lighting parts.
Our range includes:
Lampholders — including traditional, decorative and specialist replacement types.
Lighting cable and flex — including braided, twisted and specialist lighting cables.
Ceiling roses and suspension components — for pendants, chandeliers and bespoke lighting assemblies.
Other specialist lighting parts — including small components that can be difficult to obtain through general electrical wholesalers.
You don't always need a large quantity. We supply individual specialist parts as well as mixed orders for workshops and manufacturers.
If you're trying to identify a replacement component, send us a photograph and the relevant dimensions. We'll help identify a suitable part or practical alternative where we can.
The finished fitting's electrical safety and compliance must still be assessed by a competent person.
Running a lighting business?
Our Lampfix trade account provides access to specialist lighting components, appropriate trade pricing and practical product support.
You may also find our guide Is Lampfix a good fit for my business? useful.
Need a light fitting rewired or restored?
We also offer a Lighting Rewiring & Restoration Service at our Stotfold workshop.
Whether you're maintaining a cherished family lamp or sourcing components for a professional restoration project, we're here to help.
Unusual lighting parts, practical knowledge and dependable supply. That's what Lampfix is here for.
Call 01462 731 173 or email sales@lampfix.co.uk.
This article provides general guidance for UK lighting businesses. It does not replace applicable legislation, product standards, manufacturers' instructions or a competent assessment of an individual fitting. Requirements depend on the fitting, the work undertaken and the market in which it is supplied.
Originally published 8 March 2022. Updated November 2026.