fwiw...the stock units on a tj seem to work fine for me. i swapped the OEM lamp in them for a pair of sylvania silverstars and also pulled the light defuser out at the same time. even white glow now with better side displacement. they are a fog as the light isn't directed in any certain direction other than foward. at night the difference is incredible and i can see the ditches clearly.
chris (hates taking out deer)
Mine - '03 TJ RE4.5 coils, long arms, 4.88 gears, arb/detroit, 35" BFG KM2's, 9.5ti, skids, etc.
Hers - '01 TJ RE4.5 coils, 35" BFG's, Hs9500, HP30/8.8, 4.56 gears, skids, etc.