Suggestions for upgrading halogen bulbs in reflector housings?
1. 5000k bright white halogen bulbs.
2. 5000k HIDs
3. 5000k LED bulbs
I've never upgraded the bulbs while keeping the reflector housings, so I'd like to hear opinions of all 3 of these options, as well as suggestions on products. Thanks!
Last edited by zrheath; Mar 20, 2017 at 03:16 PM.
1. 5000k bright white halogen bulbs.
: Not sure how much more visibility you could gain with this option. I have tried many different styles and kinds of bulbs on previous vehicles, but when I swapped out the bulb with different temperature ratings, this would purely be just for looks and colors. I would say stay with stock bulb (4300k I believe) for best visibility.
2. 5000k HIDs
: If I were given only the 3 options you have, this is the route I will go for. However, I would install the bulb in a correct way so that I won't blind other drivers on the road. With 5000K HIDs, it will closely match the LED fog strips in my opinion, and it will definitely give you more visibility.
3. 5000k LED bulbs
: I would not go for this route unless you go with high quality LED that is proven to gain you more visibility than the stock bulbs. To my experience, I have installed LED headlight bulbs on stock housing with halogen projectors (different vehicle), visibility wasn't that great. This would also purely for looks I believe.
As for the HID bulbs, I would recommend going with Philips (Osram) brand for quality and visibility, but they get expensive. You could go with different brands with cheaper options though. I think 5000K works the best for color and visibility.
Hope this helps.
2. You'll need to go with an HID conversion kit, not just HID bulbs. Although there will be glare no matter how you try to aim the bulb due to that huge reflector housing, since your goal is to go with depo headlights that have the projectors, this is the best short term option as you can just reuse the HID conversion kit in your depo housing. We carry top end Morimoto H7 canbus HID conversion kit if interested. You'll need a canbus kit for it to function properly, not just any HID conversion kit.
3. Although we generally recommend against LEDs for forward projecting housing due to reduced throw distance, they will be pretty much as good as diamond visions. I wouldn't use LEDs as your end state goal though as your housing (and the DEPOs) are not designed to capture LED surface mounted light spread.
1. 5000k bright white halogen bulbs.
: Not sure how much more visibility you could gain with this option. I have tried many different styles and kinds of bulbs on previous vehicles, but when I swapped out the bulb with different temperature ratings, this would purely be just for looks and colors. I would say stay with stock bulb (4300k I believe) for best visibility.
2. 5000k HIDs
: If I were given only the 3 options you have, this is the route I will go for. However, I would install the bulb in a correct way so that I won't blind other drivers on the road. With 5000K HIDs, it will closely match the LED fog strips in my opinion, and it will definitely give you more visibility.
3. 5000k LED bulbs
: I would not go for this route unless you go with high quality LED that is proven to gain you more visibility than the stock bulbs. To my experience, I have installed LED headlight bulbs on stock housing with halogen projectors (different vehicle), visibility wasn't that great. This would also purely for looks I believe.
As for the HID bulbs, I would recommend going with Philips (Osram) brand for quality and visibility, but they get expensive. You could go with different brands with cheaper options though. I think 5000K works the best for color and visibility.
Hope this helps.
2. You'll need to go with an HID conversion kit, not just HID bulbs. Although there will be glare no matter how you try to aim the bulb due to that huge reflector housing, since your goal is to go with depo headlights that have the projectors, this is the best short term option as you can just reuse the HID conversion kit in your depo housing. We carry top end Morimoto H7 canbus HID conversion kit if interested. You'll need a canbus kit for it to function properly, not just any HID conversion kit.
3. Although we generally recommend against LEDs for forward projecting housing due to reduced throw distance, they will be pretty much as good as diamond visions. I wouldn't use LEDs as your end state goal though as your housing (and the DEPOs) are not designed to capture LED surface mounted light spread.
Last edited by zrheath; Mar 20, 2017 at 10:46 PM.
Thanks for the information and opinions! It definitely is starting to look like it's best to go with HIDs for the time being and then add the projectors later. Can you explain more on the Canbus kits though, and why they are needed? Not to compare products, but I've been reccomended some other, less expensive kits on a different forum and they seem to be standard conversion kits that are claimed to work fine in the w204s. Can you tell me what the difference would be and which kit of yours you would recommend for my setup? thanks!
There are quality of component and engineering variations between the various brands.... Best out there is probably MTEC, but those are very pricey. We carry Morimoto for our customers because they are high quality known brand units with an established history of reliability at a reasonable price point.
There are quality of component and engineering variations between the various brands.... Best out there is probably MTEC, but those are very pricey. We carry Morimoto for our customers because they are high quality known brand units with an established history of reliability at a reasonable price point.
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This is the same bulb that replaces most of the interior lights as well, isn't it?
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I have never been flashed (eg. lights blinding oncoming traffic) and the look of the light temp looks HID.
The quality and reach has improved greatly on LED headlight bulbs and there are a vast and simple upgrade over halogen.
Last edited by mikerth; Mar 22, 2017 at 10:37 PM.



I have never been flashed (eg. lights blinding oncoming traffic) and the look of the light temp looks HID.
The quality and reach has improved greatly on LED headlight bulbs and there are a vast and simple upgrade over halogen.
I haven't seen an HID conversion in person so I cannot comment but I have seen an LED conversion and it looks much much brighter towards the road.

I have never been flashed (eg. lights blinding oncoming traffic) and the look of the light temp looks HID.
The quality and reach has improved greatly on LED headlight bulbs and there are a vast and simple upgrade over halogen.


