neck book light-lonfine rechargeable led night light lamp reading book light for book, 9 brightness & 360° flexible hug light for reading, camping and repairing lonfine neck book light-<b>lonfine </b>rechargeable led night light lamp reading light for book, 9 brightness & 360° flexible hug light for reading, camping and repairing <br><b>specification:</b> <br><br>material: aluminum alloy shell + silicone hose arm; <br>color: black; <br>mix length: 28inch(71cm); <br>weight: 210g; <br>mix brightness: 90 lumen(15%-100% brightness) <br>3 color temperature: 1600k-2800k-5500k; <br>battery: 1100mah(550mah each side); <br>fully charging time: 1.5hours; <br>working time: 5-10 hours; <br>design: travel lock & memory function; <br><br><b>feature:</b> <br><br>1.3 color temperature, 9 brightness levels, 90 lumen. long press can control brightness 15%-100%. <br>2.travel lock design and memory function. <br>3.fully charging time 80 mins can be used as 5-10 hours. <br>4.two usb port design. you can choose any one of them to charge both of two book lamps. <br>5.individual switch control center with our led reading light. follow your needs. <br>6.no flicker, blue light filter design, with 8 advanced led chips to deliver more uniform luminance than normal led. eyes caring and really hand free. <br>7.safety aluminum alloy shell and flexible skin-friendly silicone arm. <br>8.suitable for reading in bed, camping outside, knitting indoor, repairing,night running etc. <br><br><b>how to use:</b> <br>1.press the power key to turn on/ off the light. <br>2.long press the power key to adjust the brightness. <br>3.long press power key to adjust the brightness from the current brightness to 100%. <br>4.loosen and long-press the power key to adjust the brightness from 100% to 15%.