Illegal Headlight replacement. Why do you buy them

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Extremelights

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There are no regulations that makes led headlamp bulb replacement acceptable.

If you replaces the approved halogen bulbs with any other bulb than the system was designed for you will be in violation of the road regulation Therefore you should not be able to pass roadworthy. Installing them will put yourself at risk of getting a fine.

But yet these led bulbs are hugely popular.

Our  LED Headlight Replacement Bulbs is getting great reviews and rightly so; they are a huge improvement over standard halogen and other illegal bulb replacement such as Xenon’s and other cheap LED bulbs.

I would like to know why people knowingly still buy them though and what is your thoughts on this.

Take a look at how the old halogens compare to the new LED lights.
LED-HALOGEN-Comp.jpg

https://www.extremelights.co.za/led-replacement-bulbs-compared-to-ordinary-halogen-bulbs/

-------- Test results --------------

We set out to ander the question that came up frequently from the members of this forum. "How does the Dip beam cut off on the new Auto LED Bulbs replacement compare to HID and Halogen."


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The test setup with Nicholas Lisse and his Nissan Navara with Hannes Zietsman​

As the vehicles we drive become faster and more sophisticated, and the roads on which we drive them become ever more unpredictable and hazardous, the demand for higher intensity and greater range from our light sources continues to grow.

It is more-or-less widely accepted that since high-intensity discharge (HID) lights cannot offer optimum reaction time (as they require a 10 to 12 second warm-up period after activation), and incandescent light bulbs simply cannot match the light output of newer solutions without overloading wiring and burning the reflectors, LED lighting is the way to go.

One of the most important questions when choosing an LED upgrade to existing vehicle lighting is: Is it safe? Specifically: will the light output blind oncoming traffic, possibly causing an accident?

When installed in reflector housings that were originally designed for incandescent light bulbs, the biggest problem with many high-intensity HID and LED replacement light sources is that they don’t have sharp cut-off boundaries. Often, this leads to oncoming road users being blinded. We were concerned enough about this issue to try to find a solution.
We started by using SANS (South African National Standard) 1376-2:2006 as a reference.

This standard stipulates all aspects of motor-vehicle lighting (much of which would not be relevant to this test). Therefore, we focussed only on establishing relative quality of the cut-off zones produced by different light sources used within the same headlight reflectors, according to the criteria laid down in this standard.

In reference to the lighting pattern of a motor vehicle’s dipped beams and high beams, ‘cut-off’ is defined as the points forward of the lighting reflector at which the light pattern should end, in order to avoid dazzling oncoming traffic.

The lighting diagram below illustrates the required pattern of a motor vehicle’s dipped beam. The points and their markings are defined as follows:

  • Line V to V’ (0° horizontal angle) is the centre line.
  • Line 0 to A is the raised left-hand cut-off zone for vehicles travelling on the left-hand side of the road (such as in South Africa). This zone allows headlights to illuminate the left-hand verge of a roadway without dazzling traffic to the right of the vehicle.
  • Point B50R is the direction of oncoming traffic. So it is most important that the cut-off point of the radiated light falls below point B50R.
  • Point 0 is the point at which the light sources generate 80% of their lighting intensity above point 50V (50V being the point at which the light sources generate 100% of their lighting intensity).

SANS-1376-2-2006-Figure-1-Overlay-1024x574.jpg

SANS 1376-2 2006 Figure 1 Overlay​

The Results:

All measurements were then referenced from the 0 point. We marked the different points using reflective tape, and compared the different light sources using a light-intensity meter. Lighting intensity was measured in units of Lux. Ambient light was measured at approximately 0.2 Lux, and was deducted from all readings. We did not adjust the headlights because this is most likely how majority of customers will  install the bulb replacement kits. It is however advisable to do so at a certified roadworthy center because the reflector bulbs configuration will vary between models and manufacturers.  

Point on lighting diagram Maximum permissible light (in Lux) Halogen bulbs HID units Elite LED kit
B50R 3 Max 6 40 5
75R 75 Max 13 60 20
50R 94 Max 28 75 34
Table of measurement.

Compare-Halogen-HID-LED.gif

Unadjusted beam patterns after installing replacement bulb kits:

Observations:

It is clear from the table of results above that:

  • The Elite LED kit decisively out-performed all other light sources over the course of the test, by giving the greatest margin of safety in terms of maximum permissible light intensity at the cut-off boundaries.
  • The HID light kit also performed badly, living up to the traditional reputation of HID lights for glare and dazzle.
  • Even the standard incandescent bulbs exceeded the SANS standard at point B50R.


Conclusion:
In this case the Elite LED kit produced the best results of all light sources on test.

However, it benefitted to carefully adjust the headlight alignment after installation of all the different light sources. This is because one small variable that produces a very large effect is the position of the epicentre of the actual light source, relative to the reflector: even changes of less than a millimetre in any direction can have a profound effect on cut-off points.

For this reason, we highly recommend that if your vehicle’s standard light sources are exchanged for a higher-intensity lighting solution, that headlight re-alignment be performed by a vehicle service centre.

Although it had no bearing on the actual test, something else that stood out was the quality of light produced by the LED light sources, compared to the alternatives.

By comparison, the HID lights exhibited visible light aberrations. More seriously, the colours of the two HID bulbs we tested were actually different. The bulbs were both rated to produce 6 000K (perfect white), but one was clearly blue, and the other green (indicating colour temperatures of 9 500K and higher).

A sincere thank you goes to for Nicholas Lisse for the use of his Nissan Navara.

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H4 Halogen Bulbs

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HID Kit H4 bulbs. 6000k 35W

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Elite Auto replacement Bulb


Disclaimer: The results of this test will not apply to all light sources or vehicles under all circumstances, therefore, they should be regarded as indicative. HID and LED light sources are manufactured in varying forms and quality. The results of this test should not be regarded as relevant to other specialized optics and HID or LED solutions.
 
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