Compared with lighting indoors, the natural light of the sun is more than 100x brighter. If we can’t get the right dose of sunlight regularly our sleep cycle is thrown off. Bright light therapy is a sunlight substitute that fights winter blues, energizes you and improves sleep patterns.
Light intensity measured in lux should be 10,000 lux to mimic a bright sunny day. HappyLight by Verilux, delivers healthy, UV free "good for your eyes" natural light that lifts your mood.