Meco 3pcs Geekcreit® Christmas Tree Led Flash Kit Three Color Version 3d Diy Electronic Learning Kit

How it display: CTR-30 flash Christmas tree kit consists of three circuit board, allows 36 LED flash alternately, showing a Christmas tree in the space of three-dimensional profile (the night environment has better viewing). Feature: Kit Model: CTR-30 (three-color light) Operating voltage: DC4.5-5V Power supply: 3 AA batteries or USB charger (The adapter does not includes) Dimensions: 60 x 136 x 60mm (L x W x H) Instruction download: Click to open Package included: 3 x Christmas Tree LED Flash Kit