Each of the mini thread lampshades are about 6-7cm in diameter. 10cm distance between LED bulbs.
Each cable comes with all of the light bulbs fixed and can be used in a standard 5Volt USB socket (like the USB plug you use to charge your phone, a USB port in your laptop or a USB power pack).
DC 5V, 7W, 1 x LED Pixel 5V, 40mA
Choose between a string of 20, 35 or 50 lights.