Photographing light bulbs is a long established photographic technical exercise. They present pretty much every lighting problem a photographer can face. You have to deal with reflections, refractions, surface brightness, and even illumination from within the bulb itself.
Brazilian Photographer Alexandre Watanabe decided to take the familiar light bulb a step further this time, though. To photograph it perfectly on either black or white isn’t easy. To be able to do it on both and present it so well is very impressive.