3 COLORS 3 BRIGHTNESSThe reading light has 3 colors x 93 brightness settings, designed with 9 LED bulbs and 3 brightness modes in total. Long press the switch button to choose 3 different color modes (amber, white, daylight) as you need, and short press to adjust low/medium/high brightness for each color mode to satisfy your needs. reading, working, sleeping and etc. 100 HOURS BATTERYBuilt-in large rechargeable battery and micro USB port, it can last up to 100 HOURS no-load playback (at low brightness setting), and it doesn't take long to fully charge. The package contains a universal USB charging cable, so it can be charged by laptop/computer, power bank, phone charger, car USB and etc. EYE PROTECTION LED SOURCENo negative radiation, no dizziness, no shadow, no flicker. Provides natural, soft light that won't strain your eyes even after long hours of use. Enjoy your reading time without annoying your partner or roommate. 360 FLEXIBLE NECK- Upgraded 360bendable gooseneck better solves the problem of vibration and does not become wobbly when you move the book. Its small size and compact design also make it easy to carry, The strong clip cushion can stand alone or securely attach an e-reader, book, shelf and etc, it fits in many places. The product box includes: Reading lamp *1, USB Type-C cable *1, user manual *1. NOTE: No adapter is included.