You can easily find out a USB light to provide soft light, but if you also need to connect multiple USB gadgets, the following LED lamp with USB hub may be more suitable for you.
This is a practical USB powered LED lamp that measures 76 x 76 x 64mm and weights 86g. As we can see from the images, the LED lamp features a smooth portable design, and using press control you can easily activate the USB light, first press to switch on, second press to flash mode, third press to switch off. Moreover, the LED lamp also features an integrated 3-port USB hub in order that you can use the USB light to connect more USB devices with your computer.
The LED lamp with 3-Port USB hub is available in three colors, each one is priced at $15 USD. If you’re interested, jump to Brando online store for more details.