Size: approx. 7.5"T x 5.75" W x 3.5"Base. 3D Optical Illusion LED Light - 7 color Change Touch Button The touch button allows you to choose a steady color of your choice, or can be set to an automatic color change. No more having to turn the switch off to change the 3 colors that were available on the older models. 8 Changeable color modes including Cyan, Blue, Green, Red, White, Yellow and Purple as well as a flashing mode that displays all colors. Can use 3 AA batteries or USB. Batteries not included. This amazing light is a 2D wire frame lamp designed to play tricks on the eye. The piece creates an optical illusion, as it appears as a 3D light, but is actually completely flat. The frame is a thin sheet of acrylic glass, known for its light transmitting properties. The base is constructed from high-quality ABS. Energy-efficient LED bulbs with long life LED light life 10000 hours Energy consumption 0.012kw.h/24 hours Batteries or USB 1. Remove plastic film 2. Put the acrylic panel into the base 3. Connect the USB cable 4. Press the touch screen button to choose the color 5. Light change: red- green - blue - yellow - cyan - purple - white - all colors flashing in turn