How To Choose A Table Lamp With USB Charging And Adjustable Brightness?

Option A: No USB charging function, only a table lamp with fixed brightness. For people who frequently use mobile phones, e-books, and other devices in dormitories, this cannot meet the charging needs of devices, requiring additional charging outlets. Additionally, the fixed brightness cannot be adjusted according to different learning scenarios and ambient light conditions, making it inconvenient to use and unable to meet diverse needs.

Option B: A table lamp with USB charging functionality but no brightness adjustment. While it addresses device charging needs, the fixed brightness cannot adapt to varying light requirements during study sessions. For example, the lighting brightness needed during the day and at night differs, making it unsuitable for diverse learning scenarios.

Option C: A table lamp with only one USB charging port and two brightness settings. In terms of charging, a single port cannot meet the need to charge multiple devices simultaneously. In terms of brightness adjustment, the two brightness settings are limited and cannot precisely match the lighting requirements of different learning environments and tasks, failing to adequately meet the comprehensive needs of studying in a dormitory.

Option D: A table lamp with 3 USB charging ports and dimmable brightness. It can charge multiple devices simultaneously, including smartphones, e-readers, and other small electronic devices. Additionally, the dimmable brightness allows users to adjust the light to the most suitable level based on daytime, nighttime, and different learning tasks, effectively meeting both lighting and device charging needs in dormitory settings. This makes it the most suitable choice for dormitory learning environments.