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Old 01-26-2016, 09:10 PM
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verdict: LED or HID?

Alright guys, I'm at a bit of a loss for what to think on LED or HID. On one hand, LED will last pretty much the lifetime of the vehicle, while HID sounds to give out more usable light. Want to get input from first hand experience from some of y'all about your opinion on your LED or HID setup (preferably this set up being in a stock halogen housing) and if some of you have used both before that would be even better. Ultimately wanted to throw on a pair of SRT headlights but sounds like a bit too much work to go through all of the harness issues, bulb out warnings, and what not. If anyone could point me in the right direction of what you find to be most effective it would be greatly appreciated. Also, might sound incredibly stupid, but do our GCs have the lo/high beam in the same bulb with the two filaments?

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Old 01-26-2016, 11:29 PM
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Re: verdict: LED or HID?

I'm running LED H11 low beam bulbs in my 2012 and they put out great light. All the nay-sayers were testing bulbs from a couple years ago when they did not produce enough light.

I've got JW Speaker LED fog lights also.

The combination can't be beat. The H11 bulbs are 5000kelvin, the fog lights are 6000kelvin light color. I wouldn't go above 6000k, I wish the fogs were 5000k also.

The biggest problem I see with a LOT of the HID conversions is that they don't take the time to ensure that the arc of the HID is in the same location as the filament of the halogen bulb. That is where you end up blinding oncoming traffic (just saw an idiot like that tonight in a 90s Chevy truck while walking across the street from my neighbor's house).

When I received my H11 LED bulbs, the very first thing I did was take an old H11 halogen bulb and measure from the base to the center of the filament and then compare that to the center of the LED array. Dead on. That ensured that the LED bulbs put the light into the same reflection point as the halogen bulb. The LEDs were a bit shorter in overall length compared to the halogen bulb filament which means I don't get as wide of a light spread as I did with the halogen bulbs, but that's what the fog lights are for.

I've debated with some people that think you can just drop any bulb into a headlight and have it put out light and you are fine....
Wrong.
Modern headlights are VERY precise optical devices. If the light source of the 'replacement' bulb isn't the same as the OEM bulb, you just end up scattering light everywhere and blinding oncoming traffic (and yes I am an engineer).

I'm completely satisfied with my setup, and so is my biggest critic/doubter, the wife.

Either way...
You are probably going to need some sort of resistor/capacitor ballast between the vehicle wiring and the HID or LED bulb. I initially just dropped in the LEDs and I could see flickering. So I dropped another $30 on a set of Morimoto resistor/capacitor units (one for each side, from V-LEDs) that were plug-n-play.

The resistor prevents 'bulb out' warnings, and the capacitor evens out the 'pulses' sent to the normal halogen bulb by the vehicle electrical system. You don't notice the pulse with the halogen bulb because it can't react fast enough.
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Old 01-27-2016, 07:54 AM
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Re: verdict: LED or HID?

Quote:
Originally Posted by Todd3.6 View Post
I'm running LED H11 low beam bulbs in my 2012 and they put out great light. All the nay-sayers were testing bulbs from a couple years ago when they did not produce enough light.

I've got JW Speaker LED fog lights also.

The combination can't be beat. The H11 bulbs are 5000kelvin, the fog lights are 6000kelvin light color. I wouldn't go above 6000k, I wish the fogs were 5000k also.
Sounds great, can I get the info on your headlight bulbs? And also, for the JW Speaker fogs did you buy an actual assembly from them or do they have individual bulbs? Haven't been able to find an individual replacement bulb that they make
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Old 01-27-2016, 11:21 PM
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Re: verdict: LED or HID?

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Originally Posted by dpassons76 View Post
Sounds great, can I get the info on your headlight bulbs? And also, for the JW Speaker fogs did you buy an actual assembly from them or do they have individual bulbs? Haven't been able to find an individual replacement bulb that they make
#1 - JW Speaker 6145 fog lights only fit the 2011-2013 Grand Cherokees (to the best of my knowledge). The JW Speaker units are a complete replacement (housing and mounting bracket) for the OEM fog lights. The fog light design changed in 2014 (and a lot of other things).

According to the Sylvania automotive bulb guide, the 2014+ uses an H11 bulb for the fog lights and for the halogen head lights.

The LED H11 bulbs I bought from V-LEDs are no longer offered by them. Their LED headlight bulbs now have fans. I don't like the idea of a fan to cool the bulb.

If I had to buy LED headlight bulbs today, I would buy these:
H11 LED Headlight Kit | H11 LED Upgrade

V-LEDs still carries the Morimoto CAN-BUS adapters I used:
MORIMOTO H11 STANDALONE CAN-BUS ADAPTER | 1 PAIR

I'm not sure if you would need the CAN-BUS adapters for your fog lights, I did not need any adapter for my fog lights so I'm guessing that they are not 'pulsed' by the CAN-BUS system like the headlights, but they may have changed that with the 2014 and newer models.

Some people with the 2014+ Grand Cherokees have reported that they are having problems with both LEDs and HID kits, therefore I would get assurances from the vendors that you can return the items for a refund if they do not work for your vehicle.

XenonDepot LED Headlight Bulb Issues

From that thread, I am thinking that if your low beams light up as DRLs, then you will have problems. You can check by pulling up to a store window somewhere with your headlights off and the vehicle in Drive, if your low beams are dimly lit, they you have DRLs and may have issues.

You might be able to have the dealer turn off the DRL feature. On my 2012, the high beams can be activated as DRLs, but I had my dealer turn them back off. The low voltage sent to the bulbs for the DRL function was causing the bulbs to turn brown. You can Google search for "high beam drl bulbs turn brown".

Jeep/Chrysler may have switched to using the low beams as DRLs so that they would get more time at full power to prevent the bulb turning brown.
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