A4 Tracing Light Box with USB Cable - Type: Light Box - Size: A4 size - Included: USB cable, AC adapter Brightness cannot be adjusted. The light turns on when the cord is plugged into a power outlet, etc. There is no on/off switch for the tracing light box. 【Notes】 ・Please note that the shipping method may be changed from Rakuraku Mercari Bin to Yuuyu Mercari Bin. ・If you are paying at a convenience store/ATM, please let us know when you plan to make the payment. Shipping will only be done on weekdays, so it may take some time depending on when you purchase. Thank you for your understanding.