this is what I have, very happy with it.
http://www.dkcustomproducts.com/Prem...-H4-HL-LED.htm

 

I just ordered an LED headlamp bulb from Ramjet Racing through some FB Harley group I belong to. $49 for the bulb and $12 for shipping.

 

I recently installed these on my bike, pretty darn bright. Time will tell on how they last, I couldn't resist the price.

http://www.ebay.com/itm/321817627923...%3AMEBIDX%3AIT

http://www.ebay.com/itm/271845003106...%3AMEBIDX%3AIT

http://www.ebay.com/itm/271896975254...%3AMEBIDX%3AIT

 

It seems like there are tons of issues with these cheap LED headlights. No low beam, poor fit in the 5.75 being the main two. After much reading on here, I went with the Opt7 led insert. This just pops in like a normal bulb, replacing the original halogen. There were other, similar bulbs, some with fit issues in the 5.75. The Opt 7 goes in easily. You don't have to remove the wires from the plug, although it could help. I didn't do it that way. I just worked everything around until I could get it all to fit in the bucket, and get the ring back on. If you get this bulb you can't use the big rubber housing inside. Things definitely won't fit and it will block air flow to the fan on the back of the bulb. Low and high beams work and the headlight now matches the color of the Custom Dynamicz led blinkers.