Features: 1 GREAT FOR ENERGY BOOST AND JET LAG：It has 3 colors of light – white light ,warm light or cool light – more choices for maximum comfort. It is perfect for office workers, late shifts, jet lag, insomnia, and light deprivation,can help improve your energy and combats sleep issues by resetting your circadian rhythm. 2 SAFE AND NATURAL LIGHT THERAPY: UV free, this light therapy lamp filters out 99% UV to protect your eyes and 10,000 lux intensity for effective light therapy, and the led bulbs can last 50000 hour, it is a great choice that can help mitigate cloudy day and winter blue, you will feel better when sit in front of this light. 3 4 BRIGHTNESS SETTING: 4-level brightness (2500 Lux, 5000 Lux, 7500 Lux, 10000 Lux). Adjusting the brightness depending on the usage environment,; superior comfort, super easy, handy and useful in satisfying all your needs in pursuit of sufficient light. 4 BUILT-IN TIMER: Portable therapy lamp timer with 3 time periods: 15min/30min/60min. There is auto-off timer, it will shut down automatically when the time comes. it is a great choice that can help mitigate cloudy day and winter blue, you will feel better when sit in front of this light.