Can you import and IES file into Revit Arch?
No, only Revit MEP.
Will the IES file in Revit MEP adjust the rendering?
No, but it will adjust the Average Estimated Illumination table. You can also use IES files in VIZ for rendering.
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What kind of lights can you make in Revit; incandescent, fluorescent etc?
You basically have only the power(lumens) and colour to play with. Start with a light family template and then wrap it in a 'solid' which contains an accurender material, like glass. Then adjust the lumen count for power.