Is Smart Device : no Features : Clip on light Power Source : DC Is Batteries Required : No Is Batteries Included : Yes Light Source : LED bulbs Wattage : 3.5W Certification : none Origin : Mainland China Certification : none Item Type : Book Lights Stepless Dimming 24 Modes The book light has three color temperatures(1600k to 6000k) x 8 brightness settings (Low, Medium, High), 24 modes, can adjust the brightness infinitely, with maximum brightness 100lm and you can always find the light you want! The reading light is bright enough for reading, knitting, sewing & craft, or dim enough not to disturb others. Super Lightweight Clip-on Design Gemaha book light weighs 2.61 ounces, only 30%-50% of a smartphone. You can easily fold and carry it. The opening reaches 1.2 inches and even can clip on two laptops. This clip has a non-slip pad inside to protect your book/laptop/kindle from being scratched and provides a safe and stable grip. You can also place it on your desk. 360° Twistable Gooseneck Tube The upgrade gooseneck tube has a stainless steel core with a silicone surface without noise while twisting. It is flexible, soft enough to be bent to any position, and strong enough to keep still and stable. Noiseless Smart Touch Control No protruding buttons and Easier to operate. Just touch without any sound. It is a perfect book light for reading in bed. Eyes protection Anti-reflective and flicker-free LED light with Amber/Warm/Natural mode, which can effectively protect your and your children's eyes. Long Battery Life - 70 Hours Lighting Time The book light has a built-in 1000mAH rechargeable lithium battery. You can get continuous 70 hours of reading time (low brightness setting) with just 3 hours of charging. The touch panel can display the power status. Large Lighting Range Our book light is equipped with 16 LEDs. And its length from top to bottom is as long as 11.7 inches. This guarantee the light can light up any book, laptop, and kindle of standard size.