The higher the Kelvin the less intesnity the white light, you are correct, the 6000K takes away some intensity. There is absolutely no heat concerns for you to be aware of, our bulb have a lower wattage than a regualr halogen bulb.
The amps draw is a slight bit greater but that is where the ballast comes in to make sure that the transition of the amps from the battery to the bulb is smooth.
The kti is 100% plug and play and the wiring that comes with the kit is pure plug and play with our bulbs and the ballast wriing is pure plug and play with the stock harness of your bike. Over 50 installation of our kit was made on your bike and its a very easy install, no splicing or cutting.
We have been in business for over 2 years and thus far there is less than 1% failure rate on our bulb (over thousand of kits sold!). A replacement bulb will be approx. $70. Never had an incident wheere we had to replace someone bulb on a bike. We would be willing to give it to you for our companies cost if the situation were to arise. Also there is a full one year warranty on all parts.
The ballast is approx. a 3 by 2 inch ballast and you can be creative on where you want to put it. The kit comes with a double sided heavy duty tape and zip ties, so wherever you find space will be ok.
Hopefully this answers your questions, let me know if I was unclear in my answer.