07-23-2007, 10:57 PM
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Member
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Join Date: Oct 2006
Location: New England
Posts: 573
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1. Yes, DL50 bulbs compatible with 35W stock D2S ballasts. That will give you around 3900 lm which is slightly brighter than stock.
2. As stated above, yes you can use 50W bulbs with stock ballasts. No mods needed.
3. I got new 50W ballasts from eBay = $180 and new bulbs from australian dude on the other forum for $80 each (regular price for bulbs ~ $200 each).
4. You can buy 50W ballasts from eBay, and bulbs from the same guy if he has any left.
5. If you want to install 35W ballasts you can use stock wires, X5 can handle 35W HIDs. And in most cases you don't need the resistor since 35W HID consume around 42-45W which should not generate the "bulb out" massage. But I installed 50W which draws even more current at the start up, so I played safe and didn't use stock wires (check the diagram). I have "bulb out" message, possibly I will install resistors later to eliminate the message. You can try to power 50W ballasts from the stock wires but I don’t recommend that since your connectors, wires, switches might degrade over the time because of heat buildup.
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Originally Posted by rogerkiu
Sedoy, is the 50w HID bulbs compatible with OEM D2S bulbs? Can I just change my OEM D2S bulbs with the 50w HID bulbs? Where can I buy the 50w ballasts and bulbs? How much are they? If my x is equipped with halogen headlights, do I still need the resistor for 50w HID bulbs (halogen H7 bulbs use 55w) to remove the alert in dash board?
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