5 Color Temperatures & 10 Brightness Levels & Touch Control Just touch, you can switch between 5 different colors and 10 brightness levels, Packing list: 1 x LED desk lamp, 1 x USB charging cable, 1 x user manual. (Note: This product does not include an AC adapter).LED Eye Care Source Desk Lamp creates comfortable and soft light. No flicker, no dizzy light, no shadow. If the lamp arm is loose, According to figure 2, you can fix the lamp arm by this method, 1. Open the lamp arm cover with a blade or knife 2. Tighten the screw to the right 4. The lamp arm will be fixed.Timer Function & Memory Function: You can set the bedside lamp to automatically turn off in 30 minutes or 60 minutes, The desk lamp has a memory function that automatically displays the last selected color and brightness when turned off when the bedside lamp desk is back on.Flexible and Swivel Lamp Arm With a 180 flexible arm and a 90 base axis, you can easily rotate or adjust the lighting direction of the lamp for the best lighting angle. And thanks to the built-in base stabilizer, the reading lamp base stays sturdy when you adjust its angle.Eco-friendly and ConvenientEnergy efficient, consumes 75% less energy than incandescent lighting at the same level of brightness. There is the USB charging port for smartphones, tablets or e-readers.