Come and see our amazing products. Unlike other reading lights for books in bed, this book light provides special amber mode for your bed reading time. This LED reading light is eye-caring with blue light blocking to avoid your eye strain. At the same time, this upgraded book light will stimulate your body to produce more melatonin naturally. Thus you will get a sweet sleep after reading. Great reading light for bed.Compared with other book light rechargeable with Micro USB, this is a rechargeable book light, faster and safer. The built-in battery provides 8 hours reading time in the highest setting,and up to 80 Hrs reading time in the lowest setting. It means you are far away from charging for at least 2 weeks if you read 30 minutes every day.1.5 hours only for a full charge of this book lamp for reading in bed. Pls confirm further with us if any query about packing info, inventory status and time schedule.