68 Chevelle H4 Wiring

[chevelle327c5]

k i'm lookin at buying 4 Euro Crystal Style Lens that come with h4 bulbs... its a kit i found online... another thing is.. it comes with a adapter plug that goes from the h4 plug to the H5006 and H5001 oem plug???? I'm lost, I thought you had to wire relays in and all that fun stuff because of the low voltage?? Well anyway, is there a wiring diagram out there for this or evan a parts sheet that i can start out with on what 2 buy?

I was looking at this relay kit... http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT



Would this work? but 2 of them for each side?

thanks