## EU ErP 2026 Revision: What Changes for Christmas String Lights Before the Next Season The EU energy-related products rules are moving again, and by next September the compliance file for a box of christmas string lights will be a different animal than the one in your drawer. Most of the industry is still arguing about whether it matters. It matters the moment a batch gets flagged in a member state and the pallet sits at customs. I have watched three rounds of ErP tighten, and this time the direction is different. It is not about how bright the LED is. It is about what the file proves, and who has to produce the number when somebody asks. ## The Energy Label Is Coming for Decorative Directive 2009/125/EC covers decorative lamps through the 2019 amendment, and the 2026 cycle is the first one that pulls efficiency metrics into the same reporting as the new energy labelling framework. The practical change: your technical file needs a documented power consumption per meter of run, measured to a stated method, not a catalog number. A 10-metre run quoted at 3.6 watts on a spec sheet and 5.1 watts on the bench is now a compliance event, not a rounding difference. Bench discipline is the cheap fix. We pull three random runs from every new batch, measure at the plug for ten minutes after warm-up, and write the number into the file. Two technicians, twenty minutes, done. The factories that skip this step are the ones I stopped re-ordering from, because their 2024 file did not survive a single customer query. ## The Labelling Rule Changes the Box Energy labelling means a class, A through G, printed somewhere a buyer can find it. For led christmas lights the split will be driven by watts per meter, and the 2835-chip runs sit comfortably in the good classes while the old 5050 high-output runs and every incandescent line sit at the back of the shelf. Expect your EU distributor to want the label artwork in four languages by mid-2026. Send it early. Printers are the bottleneck, not the regulation. There is a second trap in the same file: the labelling rules pair with the RoHS and REACH annexes, so a material change in the plug housing made in May to save two cents can void the label you qualified in January. Change control on materials is the actual skill this regulation is testing. ## What I Am Doing This Quarter Three things. First, the technical file for every outdoor christmas lights SKU gets a bench-measured wattage page, dated, signed, archived for seven years as the EC expects. Second, label artwork ships to print in Q1, not Q4, because I have seen the October rush at every printer I know. Third, US stock stays on UL and ETL and is walled off from the EU compliance file, because the 2025 re-listing shake-up showed me what happens when a certification lapses mid-season and half your Amazon listing sleeps. Buyers should ask one question at the next audit: show me the measurement method for your power number. If the answer is a datasheet, you now know where your pallet will spend December. ### Frequently Asked Questions **What does the EU ErP 2026 revision change for christmas string lights?** Documented, bench-verifiable power consumption per meter in the technical file, plus an energy label class on the packaging. The measured number, not the catalog number, is what a market surveillance officer asks for. **When does the new energy label have to be on led christmas lights sold in the EU?** From September 2026 at the latest for new products placed on the market. Artwork should be in print well before the autumn retail window, which is when printer queues explode. **Does the ErP change affect US or UK stock?** No. UL, ETL and UKCA files are separate regimes. The overlap is in the factory: one line, two files. Keep them apart or a lapse in one will bleed into the other. We hold the EU-compliant [C7/C9 christmas string lights](/christmas-lights) and [warm white outdoor runs](/outdoor-christmas-lights) with their full technical files on the bench, ready for your buyer's query.