I haven't switched over to LED yet on my headlights still running OSRAM Night Beakers (good output and life so far). I did install a LED light bar behind my valance. it has great fill from the bumper forward and the sides, starts drop of about where my hi beams do. great for me, just need to cut them off when someone approaches.
used these parts made for a nice install. switch is next to my AUX outlets on lower front dash.
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there 6 bolts that hold the bumper on, 2 on each bracket and one on each corner where the fender and bumper meet. and of course disconnect the turn signals. i mounted the light on the reinforcement bar behind the valance. took about 6-7 minutes to get the bumper off. note: take off the nuts on the ends from the wheel well side (the larger nut of the 2) the nuts you would access from underneath the bumper can snap off pretty easily. the valance and bumper come off as one piece and there is plenty of room to drill the holes needed to m4ount the light bar. just find the center and mark the bar before you remove the bumper.
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a friend installed these on his truck the other day, haven't seen them yet but claims they are a lot brighter/whiter then the stock bulbs he was running.
Amazon.com: NINEO H4 LED Headlight Bulb, Hi/Lo beam, 9003 CREE XPL Chip, Cool White Conversion Kit 80W 6000K 7,200Lm - 3 Yr Warranty: Automotive
the H4 and the 9003 are identical except for the mounting base. an H4 will fit in a 9003 with out issue a 9003 has one tab that is a bit longer and generally wont go into a H4 base with out some brute force.