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a normal 9006 bulb (55 watts) puts out 1000 lumens, where a 9005 (65 watts) puts out 1700.
The 9005 bulb also does not have the shading on the tip of the bulb, which helps the output. Notice a D2R HID bulb puts out 2800 lumens, where a D2S bulb puts out 3200 lumens, only difference between the two is some shading on the D2R bulb.