UV-FREE FULL SPECTRUM LIGHT: Light therapy lamp can deliver up to 20000 lux. Using light lamp during periods when daylight hours are short can regulate sleep, improve mood, boost energy and increase focus. 3 COLOR TEMPERATURE: Sun light therapy lamp has 3 color temperatures (White /Natural/Warm Light ) that you can according to the environment to customize the settings and create a comfortable atmosphere for you. BRIGHTNESS ADJUSTMENT: Bright light therapy lamp comes with stepless intensity adjustment that protect your eyes. NOTE: It may be the brightest level when you open it the first time, please long-press the turn on/off button to adjust the brightness. TIMER & MEMORY FUNCTION: The daylight lamp has timer function, you can choose 10-60 minutes to meet your needs. Memory function reverting to the brightness intensity and color temperature settings you’d most recently picked. ADJUSTABLE STAND & PORTABLE: Sun lamp with a 90° rotatable stand, ultra-thin lightweight and perfect size design enough to place on the desk, bathroom, kitchen counter, nightstand and easy to carry to travel or business trip.