[5 Adjustable Brightness Levels] This reading lamp has 5 brightness levels, you can choose the most suitable brightness according to your needs. 5 high-quality LEDs, professionally installed, distribute the light evenly over the page read; During this time, there will be no blinking or annoying lights. In addition, the small reading light can remember your old default brightness setting. [3 color modes & eyesight protection] the small reading light on the bed comes in 3 color temperatures: amber (1800K), normal reading mode (3400K) and focus (6000K). Amber mode filters out blue light to protect and prevent eye strain; The overall reading mode of the lightweight reading bed creates a relaxed and comfortable reading environment for reading novels or poems; Focus Mode clearly highlights areas so you can focus on your tasks. [USB Charging & Long Lifespan] Rechargeable and compatible with any type of USB or standard port. This LED reading light has a built-in 500mAh battery that can last from 10 to 80 hours (depending on the configuration of the light). This means that if you read 30 minutes a day (also depending on your configuration), you can enjoy at least 20 days to 3 months of reading. Besides, there are 4 power indicators which show the remaining power. Perfect reading lamp for the bed. [flexible design] the clip of this reading lamp can light up to 150. The head can rotate 90, 90 and 45 left, right and down; This allows you to freely adjust the angle for proper lighting. Its lightweight and small design makes it easy to carry or hang in a paperback. Small lamp ideal for reading in bed at night. Note: The data is manual measurement, please allow 1-41cm error, due to differences between light and color. screen, there will be a certain color difference, the specific received in kind prevail.