Halogen headlight function
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Cross-Country
Joined: Feb 2015
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Halogen headlight function
I've never owned a 2017+ SD so I don't know exactly how the front headlights function, when turned on are all 4 headlights on at the same time at a lower wattage? Or are the low beams separate from high beams when turned on/off?
im looking at ordering some Hikari led bulb replacements today using some online deals but I don't know if wattage output is an issue or if I need to find bulbs that are designed to be ran on 2 different power levels? Or can I just get 2 of the same pair and it'll be fine?
im looking at ordering some Hikari led bulb replacements today using some online deals but I don't know if wattage output is an issue or if I need to find bulbs that are designed to be ran on 2 different power levels? Or can I just get 2 of the same pair and it'll be fine?
Logistics Pro
Joined: Apr 2017
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From: Lost in the Ozone....
The SD halogens are 9008/H13 dual filament (low and high beam) bulb. The truck does use a total of four of these . Two on each side. All four bulbs work in unison on low/high beam. In other words, when on low beam, all four bulbs use their low beam filament. Switching to high beam, all four use their high beam. Yes, you'll need four (two pairs) of the same bulb.
Lead Driver
Joined: Oct 2014
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From: NY/Canada border
One guy's opinion on the Hikari: I've had them for quite some time now and really like them. Adjust them right and you should be pleasantly surprised without blinding oncoming motorists.
Here's a video from Headlight Revolution with some good tips:
Here's a video from Headlight Revolution with some good tips:
Lead Driver
Joined: Oct 2014
Posts: 5,935
Likes: 1,352
From: NY/Canada border
I learned a couple of things from it. Judging by the fact that I've not been flashed, maybe the tips worked.
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Cross-Country
Joined: Feb 2015
Posts: 75
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One guy's opinion on the Hikari: I've had them for quite some time now and really like them. Adjust them right and you should be pleasantly surprised without blinding oncoming motorists.
Here's a video from Headlight Revolution with some good tips:
https://www.youtube.com/watch?v=OIow5YgdRro
Here's a video from Headlight Revolution with some good tips:
https://www.youtube.com/watch?v=OIow5YgdRro
Lead Driver
Joined: Oct 2014
Posts: 5,935
Likes: 1,352
From: NY/Canada border
Yes. It's been a while but I believe they're H13? All four bulbs have both the high & low beam function.
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