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  #13  
Old 07-06-2016, 11:09 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

Quote:
Originally Posted by XenonDepot View Post
true, but these are not just used for turn signal application. Something to think about though if your hazards are on for prolonged periods of time...

Just making sure people understand how hot these things can get.

Steve
My 08' had the gold resistors and they got HOT...this was before XD made these lovely resistors! Will be changing out my brake lights (only OEM bulbs left) at some point, so these will come in handy. No Walmart/eBay "specials" for me...Thanks Steve

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  #14  
Old 07-06-2016, 02:26 PM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

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Originally Posted by sobe_zuki View Post
But on average, how long are your turn signals on or brakes applied? Usually 5 minutes or less. I was playing around with mine with the signal on and the resistor got warm in my hand (probably 100 something) but not 400 degrees for those couple minutes.
This - Turn signals are on for only a few minutes, tops.

Interesting to think - ALL load resistors simply convert electricity to heat.

Remember Law of Conservation?

https://en.wikipedia.org/wiki/Conservation_of_energy

If the electricity in the resistor doesn't get converted to heat, where does it go?

Or is it just insulated better, and after an hour, they all get equally hot?
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Old 07-06-2016, 04:13 PM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

1) Insulation
2) Housing
3) Ceramic vs aluminum
4) Sizing the wattage rating of the resistors properly
5) another little trick

Steve
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  #16  
Old 07-06-2016, 09:16 PM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

Quote:
Originally Posted by XenonDepot View Post
1) Insulation
2) Housing
3) Ceramic vs aluminum
4) Sizing the wattage rating of the resistors properly
5) another little trick

Steve
The short and long of it, the power consumption needs to be equivilant to the incandescent bulb.

I appreciate that you guys have done your homework (I've purchased LEDs from you) - #1-3 is the same thing. Ceramic is an insulator, probably in the housing.

#5 is likely unobtanium. =)
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Old 07-07-2016, 07:38 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

This is why I used two 3-ohm resistors (in parallel) in place of one 6-ohm resistor...
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Old 07-07-2016, 08:14 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

@DrSpeed - Yes, the power consumption needs to be equivalent to the incandescent bulb. However, insulation, housing design, etc.. will ultimately play into just how how the resistor will get. @rt66er brings up another good point, which is something that we've done as well
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  #19  
Old 07-07-2016, 11:09 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

Quote:
Originally Posted by rt66er View Post
This is why I used two 3-ohm resistors (in parallel) in place of one 6-ohm resistor...
Quote:
Originally Posted by XenonDepot View Post
@DrSpeed - Yes, the power consumption needs to be equivalent to the incandescent bulb. However, insulation, housing design, etc.. will ultimately play into just how how the resistor will get. @rt66er brings up another good point, which is something that we've done as well
Putting on my nerd hat....

Resistors in series:

R total = R1 + R2

In parallel:

1/R total = 1/R1 + 1/R2

Two 3 ohm's in parallel is an equivilant 1.5 ohm, no? You'd need two 12 ohm resistors to have the equivilant 6 phms....
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Old 07-07-2016, 11:27 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

Yes, 3 ohm total would need two 6 ohm resistor in parallel. Maybe rt66er meant series
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  #21  
Old 07-08-2016, 07:58 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

Quote:
Originally Posted by DrSpeed View Post
Putting on my nerd hat....

Resistors in series:

R total = R1 + R2

In parallel:

1/R total = 1/R1 + 1/R2

Two 3 ohm's in parallel is an equivilant 1.5 ohm, no? You'd need two 12 ohm resistors to have the equivilant 6 phms....
Sorry, I totally messed that up! I needed 3 ohms of resistance and so used two 6-ohm resistors in parallel.
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  #22  
Old 07-11-2016, 04:26 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

Quote:
Originally Posted by rt66er View Post
Sorry, I totally messed that up! I needed 3 ohms of resistance and so used two 6-ohm resistors in parallel.
That's 48W of heat produced. That will be hot. Best you add single 6ohm at each light or use 2 x 12ohm (parallel) for a cooler resistor.

Mine works fine with 8ohm resistors/50W and runs cooler.
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  #23  
Old 07-11-2016, 08:15 AM
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Re: Easiest way to fix hyperflash on LED turning lights? 2014 GC

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Originally Posted by Mozzie View Post
That's 48W of heat produced. That will be hot. Best you add single 6ohm at each light or use 2 x 12ohm (parallel) for a cooler resistor.

Mine works fine with 8ohm resistors/50W and runs cooler.
I did an OEM Bi-xenon retrofit on mine so it is a little different situation. It required 3 ohm resistance across a relay to keep from getting a bulb out error and hyper flashing. I tried 6 ohm, 8 ohm and 10 ohm and all resulted in bulb out error and hyper flashing of the turn signals. That's why I used two 6 ohm in parallel on each side.
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