Features:
There are two kinds of 4*4*4 3D LED Light Squared, the one LED only display blue color, the other can display two color.
1: Bi-color LED is 3 feet, single color is 2 feet !
2: If you buy the only blue LED,The hole of the board "R+" dose not connect.

Specifications: 
Service voltage: 5V
PCB size: 71*73mm
LED Light Color: Blue&Red
Net weight: Approx. 83g 

Package includes:
1* PCB board 
1* Other Accessories