got it on ebay.$28.00 hong kong no issues fast ship spoke english in response,many rain storms nicely packaged guaranteed waterproof ,no special wiring, 2 wire from old bulb 1 for hi 1for lo,1 battery 12v,1 battery ground.The hardest part is mounting,no screws included.comes on with key ,goes out with key off.lamp does not feel any hotter than old bulb.I have it pointed down but the road is lit perfectly full width of lane.I did it because many people turned left in front of me thinking I was further away.clearly this is not an issue now .I drive in the city and suburbs,if it was blinding people I am sure I would be pulled over.I heard of one kid pulled over cop said lite was wrong and the kid said you saw me right ?let him go and told him to adjust lite down.this bulb has 2 filaments,I got the 4600k but when I do the k I will use 4300k.
35W HID Motorcycle Kit H4 Bi-xenon Hi/Lo Slim Ballast 4300K tmh auto,I think h4 is what the k1100 uses right?