They display their photos and posters under arc lamps of gymns fluorescent bulbs of many different types daylight incandescent lamps and mixtures of all of them. Here most of my customers dont display B&W inkjet under the sterile 5000K lab lights preached by the calibration folks. Get a printer known to print B&W inkjet well so you wont go nuts.
Rarely is this a problem with a regular darkroom developed print. Some paper ink combinations shift in hue/tint with different types of lighting. Printing B&W inkjet sometimes is abit more of a problem.