LED Help
#1
Stage 1 Audi S5
Thread Starter
LED Help
I know a lot of you put the leds from autodynamic in your roadlamps awhile back and thought they were dim so i never got them. Than they came out with super bright leds in 168/194 so i finally ordered some to match my HIDs. Problem is they wont light up. They should just slide right in like that regular bulbs right? Any ideas The polargs work fine but the freakin LEDs just wont work
#2
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168/194 are wedge bulbs....
I hope u didn't fu*k them up. LED only take polarity one way, meaning positive HAS to go with positive and negative HAS to go with negative. I don't konw if the LED has some sort of "protection" again reverse polarity...if they don't, the LEDs are probably toasted...but if they aren't insert it the other way.
With conventional bulbs it doesn't matter what polarity u put where, as long as u get current going through it. LED are "Light Emitting Diode", diodes only let current flow one way and block current from flowing the other way. So if you accidently apply the wrong polarity to the wrong node *with a 12 volt power source*, the LED are gone.
I hope u didn't fu*k them up. LED only take polarity one way, meaning positive HAS to go with positive and negative HAS to go with negative. I don't konw if the LED has some sort of "protection" again reverse polarity...if they don't, the LEDs are probably toasted...but if they aren't insert it the other way.
With conventional bulbs it doesn't matter what polarity u put where, as long as u get current going through it. LED are "Light Emitting Diode", diodes only let current flow one way and block current from flowing the other way. So if you accidently apply the wrong polarity to the wrong node *with a 12 volt power source*, the LED are gone.
#4
Stage 1 Audi S5
Thread Starter
Well that sucks but there is no way to tell which side is positive and which is negative. The bulbs have to wires coming off them (both same length) and go up the sides of the 168 adapter type thing. There is no way to tell which side is positive and which isnt. I even took them out of the 168 housing and they look exactly the same on both sides. Also how do you tell which side is positive on the car side
Originally posted by AcuraTLSFan
168/194 are wedge bulbs....
I hope u didn't fu*k them up. LED only take polarity one way, meaning positive HAS to go with positive and negative HAS to go with negative. I don't konw if the LED has some sort of "protection" again reverse polarity...if they don't, the LEDs are probably toasted...but if they aren't insert it the other way.
With conventional bulbs it doesn't matter what polarity u put where, as long as u get current going through it. LED are "Light Emitting Diode", diodes only let current flow one way and block current from flowing the other way. So if you accidently apply the wrong polarity to the wrong node *with a 12 volt power source*, the LED are gone.
168/194 are wedge bulbs....
I hope u didn't fu*k them up. LED only take polarity one way, meaning positive HAS to go with positive and negative HAS to go with negative. I don't konw if the LED has some sort of "protection" again reverse polarity...if they don't, the LEDs are probably toasted...but if they aren't insert it the other way.
With conventional bulbs it doesn't matter what polarity u put where, as long as u get current going through it. LED are "Light Emitting Diode", diodes only let current flow one way and block current from flowing the other way. So if you accidently apply the wrong polarity to the wrong node *with a 12 volt power source*, the LED are gone.
#5
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LED are bright and nice looking but they don't last long if you using them for roadlamps or for lights that need to be on constantly... i used to have super white in the roadlamp and they lasted for only 1 week.... they were cheap brands though... you can try using the PIAA LED bulbs... my friend with a Golf IV bought a few pairs and planning on using them for the headlights and sidemarker... I'll see how the look and report back... they are damn bright that is all i know...
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Originally posted by 23wt
LED are bright and nice looking but they don't last long if you using them for roadlamps or for lights that need to be on constantly... i used to have super white in the roadlamp and they lasted for only 1 week.... they were cheap brands though... you can try using the PIAA LED bulbs... my friend with a Golf IV bought a few pairs and planning on using them for the headlights and sidemarker... I'll see how the look and report back... they are damn bright that is all i know...
LED are bright and nice looking but they don't last long if you using them for roadlamps or for lights that need to be on constantly... i used to have super white in the roadlamp and they lasted for only 1 week.... they were cheap brands though... you can try using the PIAA LED bulbs... my friend with a Golf IV bought a few pairs and planning on using them for the headlights and sidemarker... I'll see how the look and report back... they are damn bright that is all i know...
If your LEDs fried...that may be due to that you were running them at a much higher voltage then rated...they will burn out. Usually you will see a little resistor or some kind of voltage regulator chip...this will covert 12 volts into 4 volts.
To identify which node goes where....look at the LED, there should be a "FLAT or NOTCH" edge, that is the Cathode or Negative, the other is positive. If the leads were exposed, the shorter lead would be negative and the longer one is the positive.
#7
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I'm working on some of this now and
there are two ways you can wire your LED's up.
First, you can divide the supply voltage (12 volts) by the LED's operating voltage. The number you have is the number of LED's you can wire in series and connect to 12 volts.
The better method is to calculate the resistor you will need. To do this, you first subtract the LED's forward voltage from 12 volts. Then, you take the result, and divide that by the LED's operating current. The number you have left is the number of ohms of resistance you will need in order to safely connect your LED. If you get a number for which you don't have a resistor, you can use slightly higher resistor. If you don't even have one close, you can use resistors in combination to get the proper value.
When wiring your LED, it is important to observe polarity. Often, the positive and negative legs are different length. The package will show you the polarity. Wire your resistor in series with the LED, on the positive leg.
Good Luck with it
there are two ways you can wire your LED's up.
First, you can divide the supply voltage (12 volts) by the LED's operating voltage. The number you have is the number of LED's you can wire in series and connect to 12 volts.
The better method is to calculate the resistor you will need. To do this, you first subtract the LED's forward voltage from 12 volts. Then, you take the result, and divide that by the LED's operating current. The number you have left is the number of ohms of resistance you will need in order to safely connect your LED. If you get a number for which you don't have a resistor, you can use slightly higher resistor. If you don't even have one close, you can use resistors in combination to get the proper value.
When wiring your LED, it is important to observe polarity. Often, the positive and negative legs are different length. The package will show you the polarity. Wire your resistor in series with the LED, on the positive leg.
Good Luck with it
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#8
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i don't know i had them in the roadlamp... and lasted for only a week... maybe it was just poor quality since the clearly said "made in taiwan" hahaha who knows..... well i hope the PIAAs that my friend got will be better... might switch back to LED if they are good because i am using 18W PIAA at the momment... the LEDs i used before were 5W only...
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i know how the look light casue i had them before... just that they are taiwan brand... and they kinda look like those in the pic.. during the night i think they didn't light up the housing in there compared to the 18W i am using right now. All you see in the night is a faint colour in the housing dependin on the LED you got and 2 little bright dots... didn't like the looks of it...
Now i wanna see if the PIAA LED will light up the housing better compared to the cheap taiwan brand ones....
Now i wanna see if the PIAA LED will light up the housing better compared to the cheap taiwan brand ones....
#11
Stage 1 Audi S5
Thread Starter
Did you just slide yours in or is there some special way? TIA
Originally posted by 23wt
i know how the look light casue i had them before... just that they are taiwan brand... and they kinda look like those in the pic.. during the night i think they didn't light up the housing in there compared to the 18W i am using right now. All you see in the night is a faint colour in the housing dependin on the LED you got and 2 little bright dots... didn't like the looks of it...
Now i wanna see if the PIAA LED will light up the housing better compared to the cheap taiwan brand ones....
i know how the look light casue i had them before... just that they are taiwan brand... and they kinda look like those in the pic.. during the night i think they didn't light up the housing in there compared to the 18W i am using right now. All you see in the night is a faint colour in the housing dependin on the LED you got and 2 little bright dots... didn't like the looks of it...
Now i wanna see if the PIAA LED will light up the housing better compared to the cheap taiwan brand ones....
#13
Stage 1 Audi S5
Thread Starter
Thanks I guess there is no certain way to put them in (positive negative side) and i should just get mine exchanged out because they dont work. Thanks again
Originally posted by 23wt
i took the socket out of the housing... pulled the bulb out and put LED in... and put it into the socket... easy as 1 2 3
i took the socket out of the housing... pulled the bulb out and put LED in... and put it into the socket... easy as 1 2 3
#16
Stage 1 Audi S5
Thread Starter
Thanks i have tried them both ways and in different places but they still dont work. I called autodynamic and he said they would test some out and send me some new ones Thanks for your help
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