oem quality stuff (philips, sylvania, denso) is gonna be your best option, unfortunately theyre HIDs only come in 1 base, a p42. a philips, sylvania,etc. 9007, 9006, etc bulb is nonexistent, so dont buy into that. personally, i have taken p42 based philips bulbs, and had the base replaced with what i need from a guy here in town, i had gotten the idea from a website. im running 4200k philips bulbs with denso ballasts, denso supplies all the ballasts for lexus, toyota, etc...
a cheap knockoff kit will throw the beam pattern all over the place. reason being is that the gas capsule in the hid bulb is not in the same place as the filament in a halogen bulb. it drove me nuts, looking at the "V" shaped hotspots in the beam, not to mention all the wasted light. when my friend rebases the bulbs, he makes sure that the capsule is located in the exact spot as the low beam filament on the factory bulb. there is a little light above the cutoff line, but the cutoff is very distinct and focused nearly identical to my factory bulbs.
05 f350 crew cab long bed, 10.5" rize, deaver rears, bilstein 5150s front and back, 38x15.50x18 **** cepek mud countrys, 18x9.5 pro comp 1023s clearcoated, 4.56s, pml diff covers, rize ladder bars, rize dual stabilzer with bilsteins, adj. trac bar, amp reasearch steps, doug tuned sct, airaid with zoodad, 5" straight pipe, fluidampr, welded egr, shimmed regulator, isspros, viair 480c with nathan p3, husky mats, marathon seat covers, uws toolbox, uws 100 gallon transfer tank w/15gpm pump, uws dog box
01 f150 supercrew, 33" mud grapplers, stock, for sale $13,000
05 brute force 750, snorkeled, lifted, 29.5x12 outlaws front and back, black type 7s, intake, hmf pipe, moose, asr tie rods
06 raptor 700se, 734cc, 10.75:1, cammed, intake, ported/polished, yoshi pipe w/ fmf header, power commander, 15t front, yfz shocks, 20" holeshots, soon to be 770 stroker...