You have 4 different settings On the light its goes from daylight to warm light with 2 other settings. Yes it is dimmable
You can install if the trim kit mount on it. Else you need to choose listed housing from RA56 spec sheet.
RA5606927WH and RA5606927WH R parts are same. Where "R" stands for retail product.
The one that works best for you. Do the research.
yes this is the warm light which is 2700K the blue is daylight at 5000K
Yes, you can adjust and tilt gimbal 35-deree up to 360-degree rotation.
Yes this needs to be installed in a can
Yes! They work great on any ceiling, and the light bulb itself is adjustable, so you can position it to hit practically anywhere in the room. Just remember, these are replacement light/trim kits...you have to have the can already in place. These screw into where a regular spotlight/floodlights would go, then the trim around the new LED bulb just clips up in place and becomes the new trim ring. But you have to already have something there to screw it into! "Retrofit"!
Yes, this fixture works well throughout the house especially living rooms into ceilings from 3/8 in. 3/4 in. thick.