Quantity: A Color: light green [Round neck eye protection design] LED reading lamp provides stable and comfortable light, anti-blue light, anti- dizziness and protects your eyes from damage and radiation. The arms are flexible and adjustable, so you can get the most comfortable angle. The ergonomic design around the neck is light and comfortable, making it impossible to feel its existence. [3 color temperatures and 3 brightnesses] Round neck reading lamp with 3 color temperatures (1600K to 11000K) 3 brightness, a total of two high-brightness LED wicks, to meet all your needs. 1600K warm light; mixed color light is 4300K; the light lasts 11000K. Long press the button to adjust the brightness, one-button operation can easily adjust the perfect brightness, suitable for reading in bed or in the car. [Smart USB charging] The reading lamp of book has a built-in 1000mAh rechargeable lithium-ion battery, and allows you to enjoy long-term wireless reading (normal reading, single head) without charging, and the brightness is strong and does not dim. Support Type-C fast charging, standard USB cable, computer charging [Infinitely curved neck] allows you to precisely position and focus the light where you want, and it can be adjusted 360 degrees to meet the needs of different angles. Each arm of our book reading light is equipped with 2 LEDs. A total of 4 advanced lights can illuminate the smallest area and provide enough light for reading without disturbing your sleeping partner. [Hands-free neck lamp] No longer hold a flashlight with the hand or mouth, or wear a headlamp, and nod your head like a robot to adjust the direction of the light when reading or busy in interview. This flexible neckband helps you focus on what you're doing without worrying about the light