| I just installed one DDM 55 watt, 4500k (higher lumens than 6000k) bulb. I have only installed one bulb on the passenger side and left a Silverstar bulb in the driver's side. My DDM HID produced visibly less lumens than the Silverstar 9005 bulb which I modified to fit in the low beam 9006 socket. I compared the light output on a wall and in an open parking lot; in both cases the 9005 produced better results. I was disappointed and asked someone else what they thought. They thought the HID had a better color but the 9005 bulb produced noticeably more light. I have left one of each bulb type on my car to decide if I want to keep the HIDs on my car. David G
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