DESCRIPTION: Why our natural light lamp: People may suffer from an imbalance of sleep, seasonal illness or lack of energy and apathy when they are in autumn or winter, rainy or cloudy days. The LED daylight lamp allows a natural light to improve overall well-being, which allows you to maintain a healthy sleep/alarm clock and improve your mood. Stimulate ration and energy. Like the sad brightness of the housing: The idea of the SAD lamp is to simulate the lack of sunlight. It is a bright lamp with the power of light that your body lacks what is in daylight. The minimum lux is for an effective effect of SAD with 2500 lux. The lower the lux, the longer your use. The portion of blue light wave portion of white light activates the receivers of the melanopsin of the eyes. This in turn will stimulate the production of serotonin. This soothing chemistry for the brain helps you in your sleep cycle and reduces anxiety. When using the lamp, you need to keep your eyes open, but not directly see the light. Specifications: Material:ABS+Acrylic Power: 15W Dimensions: 24.8 x 17.8 x 2.7 cm. Voltage: AC 100-240V Device input voltage: DC 12V. Automatic timer: 10/20/30/40/50/60 min. Light source: SMD 2835, 96pcs Colour rendering index: > 80. Light colour: light white, 10,000 lux. Color temperature: 6000-6500K Box contents: 1 x SAD light. 1 x English User Manual 1 x Adapter