Snowbrder086

Can you go from an H3 bulb to an H4??

Ryan0260

Do you mean H-13 to H-4?

Snowbrder086

Yes. Whatever the stock bulb is. I thought the book said H3? I have a 2012 JK.

adicus8

The kit for rallylights is H4 if i am correct. I have that set up and it is a huge improvement form stock.

Snowbrder086

Do you have a link? I'm looking to get some better lighting in both headlights and fogs.

adicus8

I have a 2009 JK and the headlights are H13 so i dont know if the kit will work for you, should though. And i cant post a link because they arent a sponsor. rallylights(dot)com
Really like the kit though

grumpy1

x2 on the Hella setup from Ralleylights. one of the best things that I have done to the JK and it makes useing the fog lights useless. from my research onthe fog light upgrade is that its really not posible without a lot of work Jeep used a odd light bulb in the fog lights and so it is not an easy upgrade and it uses the Pulse Modulateing systen too (turns the lights on and off very fast doesn't get the full 12 v to the light). I would suggest just getting another pair of lights and call it good. besides jeeps look cool with more lights on them.

tazzdogsocal

chhttps://www.jk-forum.com/forums/jk-electrical-lighting-sound-systems-13/anyone-got-comparison-shots-between-truck-lite-led-headlights-stock-jks-165756/ check out this thread good light pastern night pics ,it should help make up your mind .

J1nx93

A lot of people get the rally light harness and instead of hella housings the cibie are supposed to be better

IBJEEPN

I have the Cibies ($76 each- search Coventry West) in my 08 2dr Rubicon. Used the HL28130J transition upgrade Headlamp harness ($129) and Hella H4 bulbs (HL78159 clear-$10 each). No trouble to install . Took about 2 hours. Difference in pattern and cutoff is amazing. I highly recommend this set up. Don't worry about the extra brightness. Just dial the headlamps down. Never had anyone flash me and I've had them in over 2 years.