Huawei Darren smart desk lamp 3 adopts USBC fast charging technology and supports Huawei super fast charging. It can be charged to 80% in 30 minutes, and it only takes about 1.5 hours. When the power is lower than 20%, the desk lamp will automatically turn on the charging reminder function. At this time, the desk lamp will display orange, and when the power is higher than 20% and lower than 80%, the desk lamp will display blue. When the power is higher than 80%, the desk lamp shows green.