When will legal LED H7s be available? The ministry has released a timeline.
In Poland, there are millions of cars on the road that were manufactured before LED headlights became standard. In many of these vehicles, even functional halogen bulbs fall short today in terms of range and light color compared to what modern cars offer. It’s no wonder then that the market for LED replacements for traditional H1, H4, or H7 bulbs has grown to enormous proportions.
Technically, the replacement is often simple. We remove the halogen bulb and insert an LED source with the same mounting, and after a few minutes, the car emits whiter light. For years, the problem only arose after the hood was closed. The headlight was approved for a specific type of light source, and just because the LED replacement fits into the socket did not make such modification legal. But that is starting to change.
The first LED retrofits are now legal in Poland
A breakthrough occurred with the emergence of LED light sources approved under UN Regulation No. 37. A good example is the Osram Night Breaker LED Smart ECE H11. The manufacturer obtained full ECE R37 approval for it, allowing it to be used as a replacement for H11 bulbs in 12 V vehicles in countries that follow UN ECE regulations, including Poland.
The difference from previous retrofit solutions is fundamental. Previously approved options, for example in Germany, were only legal in specific cars with particular headlights listed on the compatibility sheet. German approval did not automatically mean that the same kit could be legally installed in Poland.
The full ECE homologation works differently. A light source that meets the requirements of the appropriate category is treated as a homologated halogen replacement. Therefore, there’s no need to check the specific headlight number, carry a separate approval document, or visit a vehicle inspection station just to legalize the replacement.
For now, this doesn’t mean that any H4 or H7 bulbs can be discarded and replaced with LEDs.
H4 and H7 not yet. The ministry has provided a timeline
The Ministry of Infrastructure previously confirmed that Poland does not intend to create its own separate system for legalizing retrofits. The ministry is awaiting regulations being developed at the UN level under WP.29, the group responsible for harmonizing technical requirements for vehicles.
The work has been divided into phases. In 2026, requirements for the light sources used in, among other things, fog lights are set to be tightened. In 2027, it will be the turn of headlight bulbs, namely the popular “long” type, while high-beam lights are scheduled for 2028.
And it is this final phase that is most important for most Polish drivers. That is when regulations will be established to allow for the homologation of LED equivalents of the most common light sources used in high-beam headlights, such as H4 and H7.
The ministry assumes that by the end of 2028, homologation regulations should cover all basic categories of light sources used in cars. This does not automatically mean that legal H7 LEDs from all manufacturers will be available in stores on January 1, 2028. First, requirements must be established, and then a specific product must undergo homologation.
Why is simply inserting an LED into the headlight not enough?
The problem lies not solely in brightness. The headlight and the light source form one optical system. A conventional halogen bulb has its filament located in a precisely defined position, with the reflector and lens designed specifically for that location and size.
If the LEDs in the LED replacement are positioned even slightly differently, the light distribution can change. The driver may feel they can see much more because it becomes very bright right in front of the car, while at the same time the range of the light might be worse. An even bigger problem is blinding oncoming drivers.
That’s why international homologation specifies not only the parameters of the light source itself but also its geometry and photometric properties. The goal is to ensure that the LED behaves in the headlight as similarly as possible to the halogen it replaces.
In the case of Osram’s homologated H11, the manufacturer claims a color temperature of up to 6000 K, energy consumption that is even 60% lower than that of traditional halogens, and a lifespan that is up to six times longer. The declared level of glare is supposed to remain even 50% below the maximum values allowed by relevant regulations.
Beware of the “legal” label on the box
In the coming years, it will be particularly important to distinguish between two types of products. The market has long had LED retrofits that are approved domestically in certain countries. They can be completely legal, for example in Germany, but only when installed in vehicles on the appropriate list.
This is not the same as full ECE R37 homologation. Only it allows the use of that source in accordance with a specific category without having to create a separate list of vehicle and headlight models.
A good example of the current situation is Osram’s offerings. The manufacturer sells many H4, H7, H8, H16, and HB4 retrofits, but in its latest materials it clearly separates them from the H11 ECE version. It is the H11 that now has full ECE approval, allowing for widespread legal use without a compatibility list. For the other types, it is necessary to check the status of the specific product and the country where it will be used.
LEDs may shine better, but regulation remains important
A legal retrofit also won’t solve all the problems of an older headlight. A fogged lens, a burned-out reflector, or incorrect light settings can still result in very poor performance, regardless of the light source used inside.
After replacing halogens with LEDs, it’s worth checking the settings of the headlights. The correct height of the light and shadow boundary is particularly important, as even a homologated light source installed in a poorly adjusted headlight can blind other drivers.
The benefits of high-quality retrofits are obvious, however. LEDs can provide whiter light, lower energy consumption, and significantly longer durability. For owners of older cars, it’s also a much cheaper way to improve lighting compared to replacing entire headlights with modern ones.
Piotr Sobczyk