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01-08-2003, 03:01 AM
I've read 3200 lumen for 4300k and 2400 lumen for 6000k. Any update on the 6000k digest discount? TIA

01-08-2003, 10:44 AM
Lumen difference is ~500 lumens. You could go on for days on "usuable" light, and which seems brighter which is better for your eyes. Whats better in snow,sleet,rain,fog. It comes down to this, if you want blue you want 6000K if you want white you want 4100K. Both give off plenty of light for your needs.


01-08-2003, 11:08 PM
color of the 4300K and the 6000K systems...I know looking directly at the 4300K, it looks white and looking directly at the 6000K system it looks blue..BUT is the color of the beam of light they project the same as if you were looking directly at them? For instance some stock HID systems(reflector-type on Acuras and Benzes)look blue or purple if you look directly at them, but shine bright white light to the ground. I\'m excluding projector type of head light b/c I know the lenses causes the different color effect. Thanx!<br>
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01-10-2003, 01:39 PM
The secret is in the headlamp lens/reflector design. HID bulbs emit a broad spectrum of light color ranging from yellow, white and blue (from the arcing). The factory HID designed headlights precisely focus the light and in effect maximizes some of the colors while minimizing others. This is why the color will vary depending on your viewing angle. It also explains why many retrofit HID systems don't look like the factory ones - because the lens design is not really optimized for a D2S/R bulb.

The 6000k bulbs are much more bluer and slightly dimmer than the 4300K bulbs. They are popular because when inserted into a halogen headlight, they look blue, and more closely resemble the factory HID systems. The only problem is the bluer the light, the more it tends to scatter and is not as effective at lighting the road as is the 4300k bulb. It is especially pronounced on wet roads.

01-10-2003, 01:58 PM

01-10-2003, 07:37 PM
D2S bulbs are rated at 4250K and 3200 Lumen
D2R bulbs are rated at 4100K and 2850 Lumen

The Philips Ultinons are, well, 5890K and rated at about 2500 lumen

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