Samsung introduced the LM302N family, the first "human-centric" LED packages. These new LED packages help improve alertness and the quality of sleep by adjusting melatonin levels. The LM302N DAY improves alertness and the LM302N NITE enhances relaxation. The DAY and NITE packages can be combined into a single luminaire to help people maintain their natural circadian rhythm and are optimal for those who spend a lot of time indoors and struggle with confused body clocks.