AspenTek Dc 5v Mini Usb Led Flashlight Hiking Camping Light with on Off Push Switch in Cool White Color for Emergency Light Power Bank Flashlight Pc Notebook HUB Car Charger 4 Pieces Packed Light color: Cool white Cap Color : 4 different colors(white, black,orange,purple) SizeDiax Height: 48 x 26 mm Power input : DC 5V It can work on any 5V power devices,such as power bank,desk computer,notebook,PC,chargers,etc With push switch:Press white button key to turn on or turn off the light Package includes one piece flexible usb cable,which allows for precise light adjustment