Maxtog...it is "heat sink", amigo. A place to bury heat, not synchronize.
They come with heat sinks, and I do not know how well or how poorly they will work, and how much modification will be needed to get optimum beam patterns. Early adopter stuff.
Dammit...linky with road test. Try and be patient.
BDF...comparison fotos may not happen. I have high output H4s in there from the PO...one of the low beams is fried. I am not going to run out and buy two new stock bulbs at this point, and that would be the only meaningful way to compare. I CAN put in two random incandescent H4 bulbs, then two 35W HID, then two 55W HID, THEN the LEDs. I think all that is in the garage or on the C10 right now. That might be interesting.
Hero for the week will be expected for all that. Or a willing buyer for my now-neglected C10. Ad in For Sale section up soon...Changing the lights at night, with the bike parked, is the only way to insure the position stays identical, right? Oh, the pain of it all...
saxman