headlight not very bright

scottnismo

I have 10' 370z nismo and I have a little hard time driving at night because headlights are not very bright. Anyone having same thoughts as I do?

hdskull

Are they properly adjusted?

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LakeShow

What do you mean adjusted? You mean angle them differently.

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USMCASA

there is a leveling adjustment on the inside (engine side) of the lamp about halfway up it. adjust it with a philips head screw driver. though... if you need to do that from the dealer, then its probably been in an accident...

Red__Zed

Try the leveling, see if that helps. Also making sure the housing is relatively clean.


If that doesn't work, swap the bulbs for some 5500k lights. The stock 4300k units are not really ideal for visibility.

Trips

If the lamps are dim and not bright as usual? Take it to the dealer and have them deal with it and if their out of adjusting they can check that also. Having to adjust them by yourself may lead to raising the light path that may not be legal in the sense that the lamps will affect other drivers either from behind or on coming, if you ever had a driver come towards you with a missaligned headlight you'd know what I mean.

Pelican170

I dont know if Id agree with that. From what ive read, 4300k is one of the best for visibility...

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MattP725

Yep the 5.5k will actually reduce white levels and in turn reduce visibility. I have no issues seeing at night. You could always add some fogs but I'm personally not a fan.

Pelican170

Wow, i dont think ive seen a Z with fogs...

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MattP725

Which is a good thing in my book.

scottnismo

what If I go with 6000k HID bulb. would it be brighter and therefore more visibillity?

vividracing

The temperature doesn't work the way you're thinking. 6000k, 5000k, 4300k, those are all bulb color temperatures. The higher the number, the more blue (and eventually purple) the color of the light is. I'm not an expert, but I do know the basics... Anything above 6000k is actually dropping in visibility. You want to stay between 4300 and 6000k. I prefer 4300k and I'll never try to go above 5000 personally. All those people driving around with 10000k, 14000k, etc are actually seeing WORSE than before, and also causing eye fatigue for themselves. Plus, the people that are ignorant enough to run those bulbs are usually also running them in Halogen housings, so they've really destroyed their lighting. That and it glares and blinds everyone else.

I hate HIDs lol

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Red__Zed

Human spectral reception generally peaks around 5300-5600k.

Nope. 4300k is definitely towards the yellow end, ~5000k is what most people will perceive as white.



Taking knowledge of color temperature from HID ads is generally unwise.

The Z got 4300K lights because they look white against moonlight, which is generally in the 4000-4400K range(For reference, daylight is generally in the 5-7000K range)...this was done to reduce complaints by other drivers about "blue" headlights.

Most people are going to notice a nighttime visibility peak around 5300K, which is still in the "mostly white light" range.(side note:this is of course hard to measure since the color scale does not factor in colors not in the color temp scale, and almost every light source is going to include "off" colors...part of the reason identifying a "white light temperature" is very hard to do)

Dark Sarcasm

have you had HID bulbs in previous vehicles? it take a little getting used to. Switching from the yellowish beams from older headlights to a whiter HID beam may seem like the headlights are dimmer but in reality the are illuminating more objects in front of you and not "painting" the area in front of your car. if that makes sense.

just drive around with the highbeams on like about 25% of the mf'ers around here.

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