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Discussion Starter · #1 ·
Ok...so I broke down and purchased some "real" fog lights to replace the Silverstars. I went against my better judgement and bought 85 watt bulbs figuring I would have a brighter light but shorter life; considering how crappy the fogs are to begin with. After turning them on and driving for about 20 or 30 minutes they ceased to function. I have not looked at the fuse to see if it blew but the LED on the switch to turn them on still comes on. <p>I would have thought that the harness would have been able to handle the higher wattage just reducing the bulb life. Clearly I was wrong. <p>Ideas? <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0">
 

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Re: High Wattage Fogs - Yellowstars (dgloveR)

Yikes. Re-check the fuses, but it could have overheated the wiring or harness and melted something. Does it smells like something is burnt? Maybe the bulbs got to hot in the housing and failed.<br>
 

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Re: High Wattage Fogs - Yellowstars (dgloveR)

At a nominal 85 watts per bulb, that means each bulb is going to draw about 7 Amps. <p>I believe the 2004 has a single 15 Amp fuse, (2005 and above had separate 7.5 Amp). Regardless the initial surge current of the bulbs, before the filament heats up, could easily cause the fuse to fail, since steady state they are around 14 Amps on a 15 Amp fuse. <p>I would reduce the wattage of the bulb. Some may advise increasing the fuse size which does run the risk of wire damage. Volvo, like all other manufacturers' today do not "oversize" the wire as they once did. Weight and cost penalties.
 

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Re: High Wattage Fogs - Yellowstars (rogersampson)

An 85-100w bulb<B> usually</B> will fry a wiring harness
 

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Re: High Wattage Fogs - Yellowstars (JRL)

So, if the bulb is 55w = 85w is this ok?<p><A HREF="http://www.autobarn.net/pih3ioncrysb.html" TARGET="_blank">http://www.autobarn.net/pih3ioncrysb.html</A>
 

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Re: High Wattage Fogs - Yellowstars (I Roll)

I am not sure what the 55w=85w is indicating, other than clearly it is not a logical mathematical expression.<p>If it is inferring that their 55 Watt bulb has a light output of a normal 85 Watt bulb, than from a power and fuse perspective you are OK, since each bulb draws about 4.5 Amps. I do not know what the factory size bulb is, but if power is in line than you need to make sure you are not exceeding any thermal limitations of the mounting etc. If the orignal is somewhere near 55 Watts, than I would not expect it to be an issue.
 

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Re: High Wattage Fogs - Yellowstars (rogersampson)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>rogersampson</b> »</i></TD></TR><TR><TD CLASS="quote">I am not sure what the 55w=85w... </TD></TR></TABLE><p>PIAA does this. They claim that although the bulbs pull only 55W that they have an 85W equivalent output. They just kind of "overclock" them or something? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> <p>I have the PIAA Ion Crystal yellows and they make this 55W=85W claim. Probably pure marchictecture.
 

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Discussion Starter · #8 ·
I went with the Hella Yellowstars. To sum it up I switched out the 15amp fues for a 20amp and 25amp fuse to see the result and immediately they both blew. I'm pulling these bulbs out and putting 55w bulbs in. Not worth frying a harness over.
 

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Re: (dgloveR)

When I installed my PIAAs I had a similar problem. One of the bulb connectors was shorting on the housing. A process of elimination, some spare fuses and electrical tape fixed it up for me.
 

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Discussion Starter · #10 ·
Re: (StaggRLee)

I'll double-check to make sure nothing is shorting but as JRL pointed out is it worth the risk...
 

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Re: (dgloveR)

If they truly draw 85 watts, absolutely not.<p>You can see my PIAAs next friday if you can make the Barrier GTG and judge whether you think they're worth it.<p>Hella also makes a 55W Yellow Star.
 

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Discussion Starter · #12 ·
Re: (StaggRLee)

Yep, I'm going to be there so I'll check them out. In the meantime the Silverstars are going back in.
 

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Re: (StaggRLee)

Stagg, do you have any pics with the PIAA yellow fogs on? Do you think they make a difference, or would you say they are more for looks?<p>
 

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Re: High Wattage Fogs - Yellowstars (dgloveR)

Some good info here:<br><A HREF="http://www.danielsternlighting.com/tech/lights/light_color/light_color.html" TARGET="_blank">http://www.danielsternlighting....html</A><p>LTA<br>
 

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Re: High Wattage Fogs - Yellowstars (LTA)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>LTA</b> »</i></TD></TR><TR><TD CLASS="quote">Some good info here:<br><A HREF="http://www.danielsternlighting.com/tech/lights/light_color/light_color.html" TARGET="_blank">http://www.danielsternlighting....html</A><p>LTA<br></TD></TR></TABLE><p>Thanks, I had heard that yellow bulbs were more suited for bad weather and now I know why.<p>Still not sure that with the power the R's foglights put out if just changing the color of the bulb will have much of an impact.
 

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Re: High Wattage Fogs - Yellowstars (I Roll)

I've used both Sylvania Silverstar and GE Nighthawk in my T5, both apear noticeably brighter and whiter (MY02 S60 uses fog:H1 and headlight:H7). I've never tried the yellow ones.<p>LTA<br>
 
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