Testing Lab of Power Supply/ IT / AV Products

Typical sample requirements:

• LVD testing: 2–3 finished units

• EMC testing: 2–3 finished units

• If CB report available: significantly reduces duplicate LVD testing

• Typical timeline: 2–4 weeks (LVD + EMC in parallel)

① Manufacturer name and full address

② Product model name / number and description

③ List of applicable EU directives (e.g., LVD 2014/35/EU, EMC 2014/30/EU)

④ Standards applied (e.g., EN 62368-1:2018, EN 55032:2015)

⑤ Notified body information (if involved)

⑥ Place and date of issue, name and position of authorized signatory

• Minimum height: 5 mm

• Must be proportional (cannot stretch or distort the letters)

• Must be permanently affixed (printed, molded, or engraved — not a removable sticker)

• The CE mark must be clearly visible, legible, and indelible

Important: If the manufacturer is not established in the EU, you must appoint an EU Authorized Representative (EAR). The EAR's name and address may be required on the product label or packaging.

Q: Do I need a notified body for CE certification of power adapters?

Generally, no. LVD and EMC directives allow self-declaration by the manufacturer. A notified body is only required if your product falls under a directive that mandates third-party involvement (e.g., medical devices under MDR, machinery under MD). For standard power adapters, self-declaration with a test report from an accredited lab is the standard route.

Q: Can multiple models be covered under one CE certification?

Yes, if the models share the same electrical design, key components, internal structure, and enclosure material. You can apply for family coverage by selecting a representative model for testing. The specific coverage rules must be confirmed with the testing laboratory — typically the models must be identical in all aspects that affect safety or EMC performance.

Q: What happens if my product is selected for market surveillance audit?

EU market surveillance authorities can request your technical file at any time. If the file is incomplete, unavailable, or the product does not match the described specifications, you may face fines, forced withdrawal from the market, and damage to your brand reputation. Maintaining a complete and accurate technical file is therefore not optional — it is a legal obligation.