I would like to offer my experience in dealing with 'customer service' with alternative source of modulators (Kriss, NOT Kisan.) (True, I am not a satisfied, but unpleased disgruntled customer.)
I have bought headlight modulator systems from both Kriss and Signal Dynamics over the last 5 years. Only recently (last 2 months) have I had a most noxious and disagreeable experience with Kisan. I tried to return a modulator I ordered. It was supposed to fit the FJR I have, but I was very much disappointed with the simple lack of documentation and description of features and installation. I called Kisan to respectfully request a refund.
I called to speak to customer service. I got the impression (more than one phone call) that only one person answered the phone. Is this a one-man shop? He was less than helpful; even defensive from the start. Antagonistic and aggressive on repeated basis. Argued repeatedly my claims. It really surprised me, after hundreds of sucessful ebay and online motorcycle transactions) to have this antgonistic and aggressive 'customer service' person attacking my claim. Surprising.
Well... Suffice it to say, Kriss may make high quality gear. They absolutely stink at supporting it. Thats my opinion. I would NEVER ever order from them again.
Kisan and Signal Dynamics - get my vote!