If you're keeping the stock housing, there are a few options that work pretty well; you can go HID or LED-- both options will get you more light output. You'll just have to be careful when you adjust the headlight bucket as the light can be quite blinding to oncoming traffic due to the design of the reflector. I had the HID kit listed below and was quite pleased with it. I only swapped it out because I went with a billet housing from Altered State Design. Note that with the HID, you'll have to hide the ballasts; they're slim, but it's still something to deal with. Since I'm Topless, I just put them in the very front of the airbox. LED tech wasn't available when I did my setup, but at this time, I'd certainly consider them-- the only issue is that most have cooling fins/fans on the back, and the fitment between the back of the bucket and the frame neck might be problematic.
I like the SoCalMotoGear products personally-- I used both their single HID and dual HID kits and liked them both very much.
HID:
http://www.socalmotogear.com/Harley-V-ROD-HID-KIT-BI-XENON-HI-LO-BEAM-p/hdvh11.htm
LED:
http://www.socalmotogear.com/Harley-V-ROD-LED-CONVERSION-HIGH-PERFORMANCE-p/hdvrkt-led.htm
Bear in mind that for HID if you replace both high and low (for both HID and LED, actually), you really need to make it so that the low beam stays on when the high-beam is triggered. (ESPECIALLY HID as it takes a few seconds for the filament to warm up when you switch low to high-- and you're riding in the dark until that happens). Here's the easy, free and non-wire cutting way to do it-- the "FBJ Mod":
https://www.1130cc.com/forums/showpost.php?p=3617786&postcount=419
The next other option is to use a REPUTABLE plug and play bucket-- some of the Chinese ones (although cheaper) are hit or miss. Here's an example to what I'd consider a reputable "plug and play one"-- no dog in the fight, other than I've worked with them before and they seemed very stand-up with good products:
http://www.socalmotogear.com/PATHFINDER-HD7DRLB-LED-PROJECTOR-LED-HEADLAMP-p/hdvrod.htm
Finally, you could consider something from Altered State Design. The manufacturer (KillerVrod / Keith) is a long-time forum member here. IF YOU TALK TO HIM, he can make you one of his lights that's completely plug and play; i.e., you won't have to cut your harness and do any splicing. His work isn't cheap, but you're paying for quality. The billet ring looks pretty awesome on the bike.
https://www.alteredstatedesign.net/daymaker
If you go to my looooong thread "The Modifications Begin" and start reading down from post 767, you'll see a lot of pictures of what the Altered State headlight looks like, high/low beam patterns, etc.
https://www.1130cc.com/forums/showthread.php?t=169902&page=52
Actually, if you wade through my "The Modifications Begin" thread, you'll find information on various bulb swaps, pictures of the HID install and light pattern, and obviously the Altered State setup, as I've experimented on a lot of lighting options over the course of several years of modifications. There's a LOT of other good ideas (at least I think so) on what you can do to your F as well in there-- but it's going to take a fair amount of time to read!
Good luck-- hope the information helps!
Rod