Temperatures and continuous dimming: each head of this reading lamp has a switch, long press to adjust the brightness. After turning on the lamp, adjust the color temperature using the button on the main body. 3 color temperature modes: warm light (3000K), neutral light (4500K), and cool white light (6000K). The reading lamp automatically restores the color temperature and brightness settings from the last power-off. Rechargeable and durable: Built-in rechargeable lithium battery with 1000 mAh capacity, providing continuous operation for 6 to 80 hours when fully charged. Can be charged via computer, wall charger, car charger, or power bank. Ergonomic design – hands-free operation: features advanced LED light beads designed to maximize eye comfort during reading. Ergonomic neckband design with soft silicone covering; the flexible arm can be bent into various shapes to achieve the most comfortable lighting angle. Worn around the neck, it allows complete hands-free use without holding a lamp or flashlight. Lightweight and portable: weighs only 131 g, compact and foldable, easily fits into a backpack or bag. Ideal for camping, travel, and nighttime use. Wide application: suitable for nighttime reading in bed, in vehicles, sewing, knitting, touch-ups, and outdoor activities such as camping, barbecuing, dog walking, and night jogging. Makes a great gift for family and friends. Material: plastic Color: grey Package Contents: 1 x Neck reading light 1 x USB cable Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3 cm.