This R20 bulb does not come in a higher watttage. If you were to step up to a BR30 which is a slightly larger bulb it would be available as a 65 watt.
This bulb has a coating on the face of the bulb.
These will fit into your can lighting housings provided the can's accept a bulb with a medium base.
The big difference between a spot and a flood light is the beam angle or spread that the bulb produces. Flood lights have a greater beam spread and cast a wider light and are great for general task lighting. Spot lights cast a much narrower beam of light and focus the light on a specific area.
Yes it does
This bulb is a 2700K, Soft White color temperature
Yes - this bulb can be used in this application
At the widest area, 2.5"
yes. I believe I saw them in red and green at the Home Depot.
No, this is an E26 base R20 shape bulb.