This circuit is simple and practical, with low power consumption It is driven by integrated circuits: fewer parts, simple and easy to understand circuits The pluggable design makes it easy to replace parts at any time and facilitates circuit debugging This kit will make your Christmas more memorable and dreamy Made of high-quality materials<br><br>Operating voltage: DC5V Power supply: 3 AA batteries or USB charger (The adapter does not includes) Colour:As Shown Material:Plastic+PCB Specification: A: Without housing<br><br>Package Contents: 1 x DIY Christmas Tree Kits<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.