HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Enjoy The Classic Game Of Tetris In A New Way With These Glowing Led Squares Tetris Desk Lamp! You Just Need One Square To Connect To The Power Source And The Other Pieces Will Then Light Up When They Are Stacked And Touch Each Other. Stack Them In Any Combination And Any Shape! Material: Abs plastic+ Led Size: Each Little Cube Measures Approximately 4X4x4cm Name: Tetris Night Light Input Voltage: Ac110v/Ac240v Power Supply: Au Adapter Light Colour: 7 Colours Note: Colours Of The Blocks May Vary Slightly Note: (1). Each Square Has Positive And Negative Must Be Correctly Placed In Connection To Light Up. You Will Receive: 1 X Set Of Blocks To Form Your Tetris Lamp Or Multiple Sets (Check Dropdown Options Or Title)