Natural Balanced Light. Long Life. Chromalux Light Bulbs are long-life light bulbs that offer full spectrum lighting which closely imitates natural daylight reduces yellow glare increases black and white contrast improves readability lessens eye strain and helps promote a sense of well-being. The Pure Light From Scandinavia To See And Feel Better! The Chromalux bulb has its origin in Finland Land of the Midnight Sun where life must be sustained in almost total darkness for a few months of the year. Extensive research and testing there resulted in the design of this unique light source which closely simulates natural daylight.