I've also installed the LED light from ebay that was listed previously. I'd like to share my thoughts on the light. Overall it seems to provide more lumens than stock, for sure, but there does also seem to be a bit more light scatter. You'll see below the differences between a stock bulb (55/65w, blue tint), a new hella bulb (55/65w, no tint), and one of the ebay LED bulbs.
I also installed some of the 10w 40° fog lights from ebay on either side of my radiator. I don't have them completely hooked up at the moment, I'm waiting for the handlebar switch to come in the mail. I chose to use an OEM multistrada fog light switch to keep the "stock" look.
Here are photos of the stock bulb. In order, the headlight, low beam, then high beam. No adjustments were made between swapping the bulbs. Keep in mind these were shot with a cell phone, the light output you see in the photos will not be accurate due to autofocus, I'm simply trying to show the cutoff pattern and color of the bulbs.
Here is the Hella halogen bulb. Notice the slightly different color to stock. Same wattage.
Here is the LED bulb. Notice with the low beam, there is largely noticeable scatter on either sides. While I don't think this is good for other drivers on the road, I'm willing to accept this because of how terrible the stock bulb is for my own visibility. Make your own call here, these bulbs are technically illegal to use.
For the record, I also bought a 35w H4 High/Low HID kit from DDM tuning. This kit had a hilariously bad light pattern that wasn't even worth showing. I returned it. If I can get my hands on an OEM used headlight on ebay, I would consider modifying it to fit a projector, and upgrading to an HID kit in the future. Considering a stock headlight assembly is around $600+ in the US, this is a definite no-go for me right now while I'm under warranty.
Some other observations about the LED bulb: I hooked the high beam up directly to a battery inside my house, and let it sit for 20 minutes. With an infrared thermometer, I took the temperature of the components to see if I had to worry about melting the headlight assembly. Here was the temp of the mesh heatsinks after 20 minutes:
Here was the temperature of the ballast/driver for the LED. You'll see a picture of what it looks like further down.
In my opinion, while these may seem hot, I do not believe these will cause damage to the headlight. Halogen bulbs get much hotter. I will find out with time.
Here's a comparison photo of the bulbs if you're curious.
Here's a photo of just the LED bulb and the driver:
I'll weight in on the LED fog lights this spring once I get them properly hooked up and adjusted. For now, here's a teaser: