How many audiophiles do you need to change a lightbulb?

Reflective surfaces.  First the room must be treated with specialist reflective surfaces, to ensure maximum distribution and maximum balance of light throughout the room.

Without knowing where the furniture goes and in particular where you intend to sit and on what, picking out, screwing in or turning on a light bulb is meaningless. Not all light bulbs are created equal and I suggest that you audition many in your own home before actually purchasing. You may prefer an LED bulb over a soft white for instance. While I prefer having my light bulbs uncovered you may prefer to cover yours and picking out the right cover can make all the difference.

Many rooms have reflective surfaces while some have surfaces that absorb. If you have done everything right and still the light is not to your liking you may want to consider rewiring your whole house. Dr. Langostino has pure silver 12 gauge in his dedicated light room.

The most important item can be the source you feed it - some prefer bright light and others a smoky hue. Some modern "lightest"have even opted on a sky light. I know, I know blasphemous but if you get discouraged you can always go out into the sun and use it as your reference. That is of course, unless you are a night guy.

Regards,

The dullest bulb

PS - Let us all know what you finally decide on and give the exact details of how and how long you screwed it in. All of us deserve to be screwed!

@highfi , "All of us deserve to be screwed!"

But not until we've suffered months of meticulously agonising painstaking research and analysis (before, some might say, making the totally wrong decision). 

No short cuts to true audiophilia are allowed. We have to earn our stripes the hard way.

None. As a subjectivist, the audiophile is convinced the old light bulb (which is better anyway than the new ones) is still lit, and discounts any measurements to the contrary.   He convinces several of his audiophile friends to come over and they all enjoy "the light," describing the experience on Internet forums and blogs, using terms usually reserved for food or sex.