Which LEDr categories can buyers discuss in 2026?
H11 is the clearest established road-illumination LED replacement category. H8, H16 and HB4 joined the R.E.5 Group 5 list through the 2026 amendment package. H9, H10, HB3 and HIR2 remain pipeline topics in the material checked on 10 July 2026. H7 and H4 still need a separate conversation because no harmonized Group 5 category sheet was identified for either type. In some countries, a specific H7 or H4 product can be permitted through a national approval and a vehicle or headlamp positive list.
None of those statements proves that a bulb offered by a supplier is approved. A category sheet is a technical route. Product type approval is evidence for an exact manufactured type. Installation and road use add two more questions: where the product may be fitted and whether the destination market recognizes the route.
Read every LED retrofit claim in four layers
LEDr discussions become unreliable when four separate decisions are compressed into one word such as "approved." The first layer is the category specification. R.E.5 contains technical sheets for light-source categories and Group 5 is used for LED replacement categories. The second layer is product type approval under the relevant regulation. The approval must identify the product type and approval holder. A category name printed in a catalogue is not a substitute for that document.
The third layer is application scope. The buyer needs to know the intended lamp function, installation instructions and any required accessories. National approvals may also restrict use to tested vehicle and headlamp combinations. The fourth layer is market recognition. A UN approval claim should name the regulation and be limited to countries applying or recognizing it. A national permission should name the country and must not be promoted as a global ECE approval.
| Layer | Question to answer | Evidence |
|---|---|---|
| Category | Does the technical category sheet exist and what is its status? | Current R.E.5 version and amendment history |
| Product | Is this exact manufactured type approved? | Type-approval communication and matching markings |
| Application | Where and how may it be installed? | Category scope, instructions, accessories and any positive list |
| Market | Which jurisdiction recognizes the route? | Applicable UN regulation or national authority material |
The 2026 category map
| Category | Regulatory reading | Safe buyer wording |
|---|---|---|
| H11 LEDr | Established Group 5 category; Configuration-2 detail adopted in 2024 | Category in force. Exact product evidence still required. |
| H8, H16, HB4 LEDr | Introduced through the 2026 R.E.5 amendment package | In-force categories reported from March 2026. Check the product and use. |
| H9, H10, HB3, HIR2 LEDr | Technical pipeline and meeting work | Under development or review. Do not claim adoption. |
| H7, H4 LEDr | No harmonized Group 5 category sheet identified | National approval may exist for a named product, country and positive list. |
This map is a sourcing filter, not a product certificate. It tells a buyer where a regulatory path exists and where the discussion is still national or developmental. The map also needs maintenance. A proposal, a GRE decision and a valid R.E.5 version are different points in the process. Pages that report pipeline dates must be updated after the official record is available rather than written in advance.
Why H11 is the best place to learn LEDr logic
H11 is useful because buyers can separate a real category path from the broad aftermarket use of the words "H11 LED." The H11 LEDr category existed before the 2024 amendment. ECE/TRANS/WP.29/2024/156 amended details in the H11 LEDr sheets to introduce Configuration-2. That history matters. It prevents a common error in which the 2024 change is described as the first approval of H11 LEDr or as proof that every two-sided H11 LED design is compliant.
A supplier making an H11 road-use claim should be able to connect the exact part number to an approval communication, explain the approval marking and show that production matches the approved type. The product must also use the correct cap and keying. A recent TF S/R report discussed E-marked H11 LEDr examples with apparent R37 documentation that still raised compliance concerns because the necessary cap keying was missing. The lesson is practical: paperwork and physical product identity must agree.
H11 category status can remove the need for a vehicle positive list when a valid UN R37-approved LEDr is used within the recognized route. That statement must keep its boundary. It applies to a valid approved light source and to countries where UN R37 is recognized. It does not transform an unverified product, an R10 certificate or a compatibility claim into an H11 LEDr approval.
How to read H8, H16 and HB4
H8, H16 and HB4 were developed as one package using technical ideas established through the H11 work. The proposal history refers to front-fog applications, which explains why these categories are often discussed together. That development history is useful context, but it should not be turned into a wider commercial claim or an unsupported statement that every approved product is restricted in exactly the same way.
For sourcing, start with the category sheet and the exact product approval. Confirm the counterpart filament category, lamp function, markings and any instructions. HB4, in particular, has appeared in more than one lamp context in the wider market. A product page should therefore state the approved use it can document, not infer use from the base name. The safe sentence is that the category path exists. The stronger sentence, that a named bulb is legal for a named application and market, needs product evidence.
Why H7 and H4 need different wording
H7 and H4 are high-demand replacement types, but demand does not create a harmonized category. The R.E.5 Group 5 material checked for this article did not list an H7 LEDr or H4 LEDr category sheet. Buyers should not describe those types as universally UN R37-approved LED replacement categories.
That does not mean every H7 or H4 LED replacement is illegal in every country. Germany and France have used national approaches for specific LED replacement products. UNECE inspection material describes these routes as application-level approvals based on headlamp photometry and vehicle installation work. Use is restricted to the vehicles or headlamps in a positive list. Other countries may recognize or build on national approvals under their own rules, but that must be verified market by market.
For H7 or H4, the product name alone is a weak starting point. Ask for the national approval document, approval holder, product reference, country, vehicle and headlamp list, required adapter or electronics, installation instructions and any document that must stay with the vehicle. A physical fit outside the list is still outside the documented approval scope.
H9, H10, HB3 and HIR2 are not finished claims
TF S/R reports show active work on H9, H10, HB3 and HIR2. The materials discuss technical proposals and preparation for GRE review. On the date this article was updated, a further task-force meeting was scheduled for 13 July 2026. It had not yet occurred. Any result from that meeting must be checked against the later official report before this page or a sales document uses past-tense wording.
Manufacturers can use pipeline information for engineering preparation. They can study packaging, emitting geometry, thermal control, electrical behavior and production repeatability. Buyers can prepare evidence requirements and reserve catalogue space. Neither side should print an approval statement, promise a 2027 legal date or build inventory around an expected outcome. Technical discussion can change before adoption, and an adopted category would still leave the exact product type-approval work to complete.
What to request before accepting a road-use claim
- Name the approval route and regulation. "E-mark available" is not enough.
- Match the certificate, approval holder, product reference and marking to the supplied SKU.
- Confirm the intended lamp function and counterpart light-source category.
- Check whether the route is UN R37 or a national approval with a positive list.
- Identify the countries where the product will be sold and verify recognition in each one.
- Review required adapters, electronics, caps and installation instructions.
- Ask how production consistency keeps shipped units aligned with the approved type.
This sequence puts the claim before price and lumen marketing. It also gives a supplier a fair chance to present a complete technical file. A careful supplier may use narrower wording than a competitor. That is often a sign that the supplier understands the approval boundary rather than a sign that the product is weaker.
Common 2026 status questions
Is H11 LEDr an in-force category?
Yes. H11 has an established LED replacement category path. The 2024 amendment added Configuration-2 details. Product type approval and market recognition still need verification.
Are H7 and H4 LEDr globally approved?
No harmonized H7 or H4 Group 5 category sheet was identified in the material checked on 10 July 2026. Specific nationally approved products may be allowed in selected countries and listed applications.
Are H9, H10, HB3 and HIR2 approved now?
No. They remain pipeline topics until adopted documents establish a different status. Meeting plans and target dates are not approval evidence.
Does an E-mark prove street legality?
Not on its own. The buyer must identify which regulation the mark represents and match it to the correct product and approval communication.
What changed in the 2025-2026 UNECE record?
UNECE document ECE/TRANS/WP.29/GRE/2025/17 proposed H8_LEDr, H16_LEDr and HB4_LEDr category sheets for front-fog applications. The proposal explains that the three sheets were derived from the enforced H11_LEDr equivalence approach and addresses photometric, thermal, electrical and mechanical performance. Treat the document as evidence of the formal category route, not as proof that any supplier's bulb has type approval. Product approval still requires an identifiable approval holder, approval authority, approval number and scope.
The GRE work programme also keeps H4 LEDr and H7 LEDr as ongoing category-development work with a 2028 planning horizon. That horizon is not an entry-into-force promise. It is a programme target that can change as technical work proceeds.
Official sources
- UNECE, UN Regulation No. 37, Rev.7, Amend.11
- UNECE, Consolidated Resolution R.E.5 register
- ECE/TRANS/WP.29/2024/156, H11 LEDr Configuration-2
- ECE/TRANS/WP.29/GRE/2025/17, H8/H16/HB4 proposal
- ECE/TRANS/WP.29/2026/41
- UNECE PTI 43, LED replacement inspection material
This page explains regulatory documents for sourcing and editorial purposes. It is not legal advice. Market-specific claims should be reviewed against the current law and authority guidance in the destination country.