What type of recessed lighting for a small kitchen?

Help! I have an electrician installing the recessed lighting, but I'm afraid it's going to be the wrong type. I want to use 4" lights, but what type of bulb should I go for? I don't want it sticking out, and energy efficient is a plus. My kitchen is pretty small. Please be specific:... show more Help! I have an electrician installing the recessed lighting, but I'm afraid it's going to be the wrong type.

I want to use 4" lights, but what type of bulb should I go for? I don't want it sticking out, and energy efficient is a plus. My kitchen is pretty small.

Please be specific: halogen, florescent, etc... and bulb size: mr16, r20, etc..

Thanks in advance.
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