Linear vs UFO high bay selection by mounting height, aisle width and racking layout: beam patterns, spacing rules, sensors and install cost compared.
Linear vs UFO High Bay: Let the Racking Layout Decide Read More »
How DLC SSL V6.0 listing works in 2026: QPL application paths, testing documents, fees, review timelines, and the December 15 delisting deadline.
DLC V6 Listing Requirements: How a Fixture Gets on the QPL Read More »
What EN 55015, EN 61547, EN 61000-3-2 and EN 60598-1 cover, how to spot a recycled EMC or LVD test report, and the documents importers must keep on file.
EMC and LVD Testing for LED Luminaires: Reports That Protect Importers Read More »
A 12-point check for LM-79 test report validation: lab accreditation, model match, test conditions, and whether the IES file actually matches the report.
How to Validate an LM-79 Report and IES File Before You Place the Order Read More »
Zhaga Book 18 sockets, Book 20 indoor options, D4i device types and DLC NLC rebates: how to spec plug-and-play controls without locking the fixture.
Zhaga Book 18 and NLC-Ready Luminaires: Avoiding a Controls Dead End Read More »
Which EU directives apply to a mains LED luminaire, the seven items a valid Declaration of Conformity must list, and how to spot a fake one.
CE Marking for LED Luminaires: What Your DoC Must Contain Read More »
Regulation 2023/826 applies from 9 May 2025, but lighting sits under 2019/2020. Which 0.5 W and 2 W limits really apply to your connected luminaire.
EU Standby Power Regulation 2023/826: What Lighting Buyers Get Wrong Read More »
What DALI-2 and D4i certification actually test, what the logo obliges a supplier to prove, and when a certified driver beats a gateway design.
DALI-2 and D4i Certification: What It Actually Buys You Read More »
Field-selectable wattage and CCT cut SKU counts and inventory risk, but can break rebate listings and add failure points. Here is how to spec them safely.
Wattage-Selectable and CCT-Selectable LED Fixtures: Smart or a Trap? Read More »
EU Regulation 2019/2020 makes your luminaire a containing product with replaceability duties. What to demand from suppliers and when exemptions apply.
EU Ecodesign 2019/2020: Replaceable Light Source Rules Explained Read More »
