AF: 300m Headlight bulbs (9005X vs 9006X) | Allpar Forums
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300m Headlight bulbs (9005X vs 9006X)

Discussion in 'LH: Large Cars, 1993-2004' started by MoPar~Man, Jan 14, 2019.

  1. MoPar~Man

    MoPar~Man Active Member

    Jul 9, 2014
    A few years ago I bought a set of new headlight assemblies from China ($40 each if I recall - EagleEye was the brand). Really changes the car's appearance when you replace the hazy lens with new clear ones. Gives it a new-car look. Anyways, they came with new bulbs pre-installed. A few days ago I noticed that the low-beam had stopped working on one side. I've replaced a rear tail-light (brake light) once or twice in the 19 years I've had the car, but this is the first time I'm dealing with a headlight bulb.

    I still had the original headlight units - with their bulbs still in place, so I took them all out. I see they're all 2-pin (single element) bulbs. Sylvania 9005X/SLL 22N HB3A 60W and 9006X/S 22P HB4A 51 W. I forget which is inner (DRL) and which is outer (regular night driving) but I'm assuming the 51 Watt 9006 is the DRL.

    I was wondering if these bulbs are interchangable - I'm thinking that maybe in DRL mode the DRL bulb is given a lower voltage - otherwise there isin't a lot of difference between a 51 vs 60 watt light? And how does the high-beam work with this setup? I mean, these bulbs just have 1 filament - not like the old cars (4004 round headlight?) with 2 separate filaments (low beam / high beam).
  2. ImperialCrown

    ImperialCrown Moderator
    Level III Supporter

    Jun 8, 2008
    DRL uses the high beam bulb at a 60% duty-cycle.
    Low beams are listed as 9006 XSLL and high beams are 9005 XS.

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