i recently oredered the luminics jdm yellow h4h bulbs and when i received them the box had printed h4h but the actual plastic covering over the bulbs had h4 on them.so i don't know if the h4h fit my jdm headlights or if they shipped the wrong ones.

 

I'd just try them out. If they fit cool, if not, take them back. You have nothing to lose really.

 

well the h4 bulbs which luminics shipped out as h4h don't fit.so im just trying to figure out if the h4h bulb will/will not fit my jdm headlights or if they just shipped the wrong ones.

 

if you compare h4 to h4h bulbs, the male end that connects to the socket of an h4h bulb is slimmer and narrower than h4's.

as confusing as that is, your usdm sockets will fit h4h's. just a size difference for the bulb, as well as the headlight housing.

 

h4h bulbs are smaller and a bitch to find in the US.
Hope you got the right ones

 

well ihope i ordered correctly beacuse i ordered h4h but i don't know if i received h4 bulbs.the luminics plastic covering reads h4 but the box they shipped it in and receipt reads h4h.i checked up on ebay and they have the sam luminics jdm yellow h4h and have pics and the bulbs are the small ones i need to fit in my headlights and on their plastic covering reads something else but not h4 like mine.

 

The JDM EG Headlights should take H4H bulb, also known as the R702K. You might want to see about exchanging those, but if you opened the package, you might have done yourself in. But if you ordered them off of ebay, you might be hard pressed to get any customer service.

 

you can make the h4 fit into the h4h housing and it will work but it just doesnt produce as good of an output as the h4h does... we did this on my friends rex with jdm front... the light output was alot better when he had h4h bulbs as compared to the h4

 

well i contacted luminics and they already shipped out the correct ones i ship theres back tommorrow.