Hign-concerned Chemical : None Is Smart Device : no Features : Adjustable Color Temperature, Dimmable, Rechargeable Model Number : Book Light-Black Battery Type : Lithium Metal Power Source : DC Is Batteries Required : No Is Batteries Included : Yes Light Source : LED bulbs Wattage : 0.4W Certification : none Origin : Mainland China Certification : none Item Type : Book Lights Stepless Dimming & 3 Colors This reading light for bed has three color temperature modes: cold white, warm yellow, and warm white. Each head has an independent induction switch that allows you to adjust the color mode with a short touch and the brightness with a long touch. You can choose a comfortable setting for reading, knitting, repairing, or camping. Rechargeable & 80 Hours Long-Lasting This upgraded rechargeable neck reading light features a built-in 1000mAh rechargeable lithium battery that provides 7-13 hours of wireless reading time (the lowest brightness light can be used for up to 80 hours!). It comes with a standard micro-USB cable for easy charging. Flexible Arms & Lightweight Covered with premium soft silicone, this neck light can be bent and folded into any shape, making it easy to create the perfect illumination for your needs in different environments. Weighing only 3.6 ounces, this bendable book light doesn't take up much space and can fit easily into your carry-on suitcase. Hands-Free & Non-Disruptive With this neck book light, you no longer have to hold a flashlight by hand or mouth. Simply wear it around your neck while reading or repairing, and shine the light in the smallest area with enough brightness for reading without disturbing your sleeping partner. Ideal Gift This book light is suitable for various scenes, such as reading, camping, sewing, knitting, and more. It makes a great gift for him, her, friends, parents, kids, boyfriend, or girlfriend on Halloween, Thanksgiving, Christmas, Valentine's Day, Mother's Day, or Father's Day.