‎3.14 x 2.59 x 5.11 inches

4 LED lamp beads & 3 brightness levels – This neck reading light has an independent switch and 2 LED lamp beads on each arm, one spotlight and one floodlight respectively. The 3-level adjustable brightness mode provides you with different light source requirements: flood light-spot light-turn on at the same time. You can choose different modes for reading, knitting, jogging at night, or repairing according to your needs.
Rechargeable & long-lasting use – The USB charging book light has a built-in 650mAh lithium battery, which has a long battery life, which can last up to 6-8 hours under high brightness and 10 hours under normal brightness. A full charge only takes 2.5 hours. No need to waste money on the battery, you can enjoy more durable and stable light.
Flexible arm & attached intimate buckle – This comfortable LED reading light is made of high-quality super soft silicone material. The flexible arm can be bent and sturdy and can be bent and folded into any shape you need. The attached buckle makes it easy to store the neck lamp and makes the arm angle more stable without worrying about falling off. Weighing only 4.7 ounces, it is easy to carry and very suitable for travel.