Retrofitlab.com Xenon HID LED headlight repair and upgrade FAQ
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Frequently Asked Questions

With our amazing vehicle selector on our website you can find exactly which kit you need for your specific vehicle! 

You can do this by following steps explained below.

Step 1:
Select the brand of your vehicle.

Step 2:
Select the model of your vehicle.

Step 3:
Select the build year of your vehicle.

Step 4:
After your completed the first 3 steps, click on 'search products'.

Step 5:
You will now be directed to the vehicle page.

On the vehicle you will see, most of the time, several different kits with different prices.

Under the picture of the headlight you can find for which headlight model the kit is made. 

Please note, all the kits are specifically made for specific headlights, it is important that you select the kit for your headlight.

For example, if you have a halogen headlight with H7 low beam and H1 high beam, you will have to select the kit for the halogen headlight with H7 low beam and H1 high beam.

Step 6:
Click on 'view products' and you will now be directed to the kit page. Here you can find all the product options. Select the preferred product options and continue by clicking on 'order'.

Step 7:
Continue by filling in your address details and continue to pay for the order.

Step 8:
As soon as we received the payment, your order will be processed in the warehouse of Retrofitlab. When your order has been send out you will receive a confirmation email with all the shipment details of your order. 

If you still need assistance with ordering the right kit, you can contact the customer support of Retrofitlab by email to info@retrofitlab.com

If your car is not to be found in our vehicle selector, click here to see what you can do. 

If your vehicle is not to be found in our vehicle selector, we probably don't have information about your vehicle yet. But don't give up already! Here is what you can do.


First, check if you have:

1. a halogen reflector headlight 

2. a halogen projector headlight

3. a single xenon headlight

4. a bi-xenon headlight


If you have a halogen reflector headlight, please send us some close up pictures and rough measurements of your headlight like shown below.

You can measure the reflector of your headlight from the outside. The measurements don't have to be perfect, it can be a rough estimate. 

Reflector measurement

The depth of your headlight is also import. You can measure that like shown below. You will have to remove the bulb in order to measure the depth. 

Headlight depth  measurement

If you have a halogen projector headlight, a single xenon headlight or a bi-xenon headlight we need some pictures of the projector that is installed. Import is that the mounting points of the projector are visible. 

In most cases, the exact measurements like shown in the picture below, are not necessary. If we can get a good look at the back of the projector and the mounting point we probably can see if we have a solution or not. 

Projector mounting points

It is also import to know if your headlight is sealed with a butyl sealing or a permaseal sealing. When sealed with permaseal, you will need a set of butyl to seal the headlight back together after the retrofit. With a headlight that is already sealed with butyl this is unnecessary as the butyl can be reused. 

You can 'test' this yourself. Usually a small piece of sealant is sticking out around the edge of the lens. When you pinch the sealant with a fingernail and it is quite hard/rubbery and there is no mark of your fingernail it is probably permaseal. When it is soft and your fingernail stay's visible if is sealed with butyl. You can also apply some heat to it ( be careful), when it gets soft/runny it's butyl, when it stays quite hard it will be permaseal. 


You can send these pictures to info@retrofitlab.com, please mention in the email your vehicle model, build year, which headlights you have installed. 

Sorry to hear that your payment failed. Sometimes this happens on the website.

If this happened, you can always wire the money manual.

You can transfer the money to our bank or PayPal account. 


IMPORTANT: Please add your order number in the description so we can see it is paid.


Our bank details are:

Name: Retrofitlab.com

IBAN: NL11INGB0006426945

BIC / Swift: INGBNL2A


Our PayPal

info@retrofitlab.com or click here to go to the PayPal payment link.


The XB35 bulbs are high quality bulbs with a very high light output. Because they are produced with high quality materials, they have an 25-35% brightness increase over our regular bulbs. Based on value for money, these bulbs are by far the best buy.

Difference between all the color temperatures

The K after the number stands for Kelvin. In the picture below you can see the difference between all the bulbs. How higher the number before the K how bluer the light will be. How lower the number before the K the more yellow the light will be. Pure white is 5000K, this is the standard look of xenon. For example in new Audi LED headlights the color temperature will be usually around the 6000K, white with a nice blue tint. 

Different color temperatures

Although this is sometimes claimed, H type xenon and LED lamps are not ECE approved / have no E mark and should therefore not be used on public roads in the EU. Within the EU, these are only intended for use on, for example, circuit, own terrain, off-road, tuning / car shows.

The position light is also known as parking or city light. These are the small light bulbs in the headlamp that can be turned on, even if the car's ignition is off. The original lights are pale yellow and do not match the color of xenon and LED. To match this color, you can optionally choose a LED light in the same color for the city light. So when you have original xenon or a retrofit, you need these lights to replace the ugly original ones to get a matching result. Our LED’s are also canbus proof.

Click here to see our parking lights / T10 LED bulbs

Yes, we are an official Osram reseller. We buy our Osram bulbs directly from Osram. So we can assure you we only sell authentic genuine Osram products.

Osram certified reseller

Xenon HID bulbs can last longer than 3000 hours.
But because the output decreases during their lifespan, advice is to change them sooner.

General advice is to replace them around 1000 hours of use. With 1500 hours of use, the output can be decreased by around 25% percent, so at that moment you have already lost quite a lot of output in comparison with a new bulb. 

So when doing a retrofit for more light output/performance it is also important to change the bulbs in time.

It is not possible to fit an H7 bulb into the Aharon Mini H1 projector. Only our H1 bulbs will fit in the Aharon Mini H1 projector.


There are two versions of the H1 xenon bulbs available. The standard Aharon H1 bulbs and the improved Aharon H1 XB35 bulbs. The XB35 bulbs will be approximately 20-30% brighter in comparison to te standard H1 bulbs. 

It is also possible to fit H1 halogen bulbs in the Aharon Mini H1 projector. For example the H1 Osram Cool Blue Intense bulbs.

ECE and DOT are both names for a different type of cut off shield. The ECE cut off is mostly used in Europe and the DOT cut off in America.

Both cut offs are fine, it is just a question of preference. 


In the picture below you can see the difference between ECE and DOT

Difference between ECE and DOT

RHT is short for Right Hand Traffic and LHT is short for Left Hand Traffic.

In most countries you have to drive on the right side of the road and therefore you need a RHT cut off shield in your projector.
There are only a view countries that drive on the left side of the road and therefore need a LHT cut off shield in the projector. This is the case with for example, the United Kingdom and Australia.

It is of great importance that you use the correct cut off shield in your projector when driving on the public road. Using the incorrect cut off shield will blind oncoming traffic and you will cause dangerous situations. 


Here you can see an illustration of a RHT cut off on te road. As you can see, the cut off shield prevents the light of your headlights to blind oncoming traffic on the other side of the road. 

RHT light pattern

This is an illustration of the light pattern that you will see in front of you when driving the car. 

RHT cut off

When using a LHT cut off shield in the projector this will be the other way around. 

LHT light pattern

LHT cut off

With a single xenon headlight, you only have low beam from the HID xenon projector and high beam only from the halogen reflector in the headlight.

With a bi-xenon headlight, you also have high beam from the HID xenon projector.

AFS stands for "Adaptive Front lighting System". It is also called "Cornering lights" or in German "Kurvenlicht".


With this system the light pattern turns the same way as the steering wheel, so when you turn left, the low beam light pattern also moves left. It's not the system where for example the left fog light is activated when you turn left.

In most headlights, for example, made by Hella, AL or Valeo this is done by moving the projector left and right. In some ZKW headlights, only the lens/lensholder swivels.

Hella also has also developed advanced functions, which changes the light pattern based on oncoming traffic for example. This is also called ILS and used in the Mercedes W211 facelift for example.

Aharon 35 watt vs 42 watt ballasts output difference/comparison.
Because of the higher wattage of the ballast, the output from the bulb is noticeably higher.
Please note; the color temperature of the bulb will change a bit, slightly more yellow, when using a higher wattage ballast. So the advice is to use a higher K bulb for white color.
Also, because of higher UV radiation and heat from a 42-watt ballast, the bowl of the projector can lose its reflective layer faster.

See the pictures below for detailed info on the output difference in comparison with a 35 watt ballast.

Links to the product details;

35 watt ballast (AMP)
42 watt ballast (AMP) 
All ballasts

Comparison Aharon 35W vs 42W

In general, 2 methods are used, with both methods, be careful and patient. 


Method 1 is using a regular oven. Preheat the oven at 200 degrees Celsius. When ready, switch off the oven and place the headlight inside. Make sure that the headlight is not touching any metal of the oven by placing a cloth over the grid, for example. Leave the headlight in the oven for 10-15 minutes before opening it. If the headlight kit is not yet soft enough, put the headlight in the oven for a bit more time.


Method 2 is suitable for larger headlights that do not fit in a regular oven, or if your lovely wife absolutely does not allow car parts to be baked in her kitchen. A large cardboard box is used where hot air is blown through a heatgun. Make sure that the hot air of the heatgun does not blow directly to the headlight, place the headlight on small elevations so that the air can circulate properly through the box. We use a setting of 300 Degrees Celsius for 12-18 minutes / 1st lowest setting, depending on the size of the headlight.

Yes, it will keep working because almost always the complete reflector part is adjusted. And because the projector is mounted on the reflector, it moves with it.

Yes high beam will still work after a projector retrofit. All our projectors are bi-xenon or bi-led, that means, they can give both low (dipped) and high beam. The projector has a flap that can be folded down by means of an electronic magnet circuit. This will enable high beam to be activated. If in the original situation in the headlight there is a separate halogen light, then it will remain working as well with the use of high beam splitters. The headlight then has double high beams, xenon + halogen. On cars with bi-xenon from factory, it works the same. It is also necessary to maintain the separate halogen high beam so that it can still be used to flash the high beam when the dipped beam is not turned on.

The function of the high beam splitter is to split a 12 Volt signal from the original high beam, to the projector and also back to the original high beam. Besides activating the original halogen high beam, the splitter also makes sure the high beam mechanism (solenoid) of the projector will be activated. The choice of splitter depends on the type of bulb that is fitted in the high beam. If you have H7 high beam, you need the H7 splitter. Are not you sure what type of fitting you high beam bulb is? Check it through this link

Do you have trouble with connecting your high beam splitter?

Please take a look at our DIY page, here you can find instruction guides that will help with connecting your high beam splitter. 

Click here to go to our DIY page. 

Click here to see the installation guide for connecting your H1 high beam splitter

Click here to see the installation guide for connecting your H7 high beam splitter

If you have trouble connecting your H4 - motorcycle wire harness single (xenon), please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H4 - motorcycle wire harness single (xenon)

If you have trouble connecting your H4 - motorcycle wire harness double (xenon), please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H4 - motorcycle wire harness double (xenon)

If you have trouble connecting your H4 - motorcycle wire harness single (LED), please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H4 - motorcycle wire harness single (LED)

If you have trouble connecting your H4 - diode wire harness, please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H4 - diode wire harness

If you have trouble connecting your H7 - wire harness motorcycle single (xenon), please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H7 - wire harness motorcycle single xenon

If you have trouble connecting your H7 - wire harness motorcycle double (xenon), please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H7 - wire harness motorcycle double (xenon)

If you have trouble connecting your H7 - motorcycle wire harness double (LED), please check out our DIY page.

Click here to go to our DIY page

Click here to see the installation guide for connecting your H7 - motorcycle wire harness double (LED)

After you placed the Panamera LED shroud on  your projector and mounted the headlight back in the car, it is time to connect the wires and make the shroud come to life. 

In the picture below you can see how this is done.

When you don't have the turn signal function on your shroud, you won't have the yellow wire. The connection of the black, white and red wire stays the same as for the shrouds with turn signal. 

Panamera LED shroud wire connections

Mounting the E46-r shroud onto the Aharon Mini D1S/D2S DOT-Bi-Xenon 3.0 projectors can be quite a struggle. 

We would advice to watch this video from 2:10, this will explain how the shroud can be mounted on the projector. 

We always use JB welt to mount the shroud. This glue will definitely hold the shroud in place.

Click here to check out JB welt.

You can use our ballasts, but please know these are aftermarket ballasts and the input connector probably is not the same as your original ballast.

So to connect it, you must connect the input wiring yourself (+ signal that is activated with low-beam and a -).


Depending on the amount of pins in your ballast connector, this can be an easy or a really difficult job. 

If you are not sure if this is possible with your car, please email our customer support on info@retrofitlab.com

If you want to convert your halogen headlight to a xenon headlight you need a ballast in order to make this work. Due to the higher amount of power needed to make a xenon bulb light up, a ballast is necessary. This is the power unit that powers a xenon bulb. You cannot use xenon bulbs without a ballast. 

You can however install projectors, but still use your OEM halogen bulbs. In this case you don't need to install a ballast. This will still improve your light output and light pattern in comparison to  your OEM halogen headlights. 
But please note, the quality and the amount of light will still be significantly lower then when you use xenon bulbs. 

No, you don't need to replace the OEM ballast that is in your xenon headlight when installing a retrofit kit from Retrofitlab. You can reuse your OEM ballast and your OEM bulbs if you wish to. 

Replacing the bulbs can sometimes improve the light output a lot, replacing a ballast will most of the times not improve your light output. 

Unless your ballast doesn't work anymore, replacing it with a new one is unnecessary.

If you still wish to replace your OEM ballast with a new one, this is possible. 

For more information, check out this FAQ: 'Can I replace my OEM ballast with a new ballast from Retrofitlab?'

A refund can only be sent to the original payment method. If a customer no longer has access to that payment method, then the customer need to contact the bank or agency for the original payment method to claim the funds after the refund is sent.


How long does it take:

The refund is made via our payment provider and a refund takes up to 10 business days to be credited back.

A refund can only be sent to the original payment method. If a customer no longer has access to that payment method, then the customer need to contact the bank or agency for the original payment method to claim the funds after the refund is sent.


How long does it take:

The refund is made via our payment provider and a refund takes up to 10 business days to be credited back.

1. Does the ballast get a good constant feed? Inspect the wiring and connectors to determine if there is no problem in the power supply. If possible, determine with a multimeter whether the ballast is supplied with 12 Volt power supply (be sure to measure the input!). 

2. Swap ballasts To determine whether the lamp or ballast is defective, the ballasts musts be swapped. If the problem moves to the other side, the ballast is not working properly. If the problem persists on the same side, the lamp is defective. 

In both cases, contact Retrofitlab.com through our email info@retrofitlab.com or via Facebook Messenger

If your time relais delay is not working properly there are several things that can cause this issue.


Time relais delay click check

The first thing you can do is to check if you hear your time relais delay make a clicking noise when turning on the lights. 

Step 1: Turn on the lights on the bike.
Step 2: Listen closely if your time relais delay makes a clicking noise 10 seconds after turning on the lights. 

If your time relais delay does not make a clicking noise this is an indication your time relais delay is broken, if this is the case for you, please contact the customer support of Retrofitlab. 


H7 wire harness motorcycle

If you have installed an H7 wire harness motorcycle (both single and double) the H7 connnection can be the reason your time relais delay is not working. You now have the wire harness probably installed with positive on positive and negative on negative on the H7 feed connection. This connection is marked as '1' on the wire harness installation guide.

Try to switch the H7 feed connection so positive is on negative and negative is on positive. Don't worry, you cannot break your electrical system with trying this. 

Due to the wiring in the wire harness this can cause an issue for the time relais delay sometimes. 


H4 - motorcycle wire harness single

If you have the H4 - motorcycle wire harness single installed on your bike the middle pin of the time relais delay can be the reason your relais is not working. You can remove the middle pin by cutting it with a pliers.  That can solve the issue with the time relais delay. 


If you still have issues with your time relais delay after trouble shooting, please contact the customer support of Retrofitlab. 

If you want to claim warranty for your malfunctioning ballast you will have to take the following steps.

Contact our customer support by email info@retrofitlab.com or via Facebook messenger.

Send a picture of your ballast like shown below. IMPORTANT, show both the barcode of the ballast as the cut through wires in one picture. 

Warranty ballast

 

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