Specifications: Condition: Brand New Kit Name: Glitter Christmas Tree Kit model: CTR-30 (three-color light) Working voltage: DC4.5-5V Power supply mode: 3 AA batteries (not included) or USB cable Dimensions: 60mm long * 60mm wide * 136mm high Features: Made of high quality material, durable and practical to use. Comes with USB cable, finished product - When powered using the supplied USB cable, the LED Christmas tree will be colorful and blinking. Different flashing lights will light up your life. Cool gifts and decorations, this cool LED flashing Christmas tree is a great gift for girls, boys, friends, family, or DIY lovers. It can be used as a tabletop display toy or as a beautiful decoration during festivals and festivals such as Christmas. You can also use it as a delicate bed light The delivery is in loose parts and needs to be welded by yourself. The finished product effect video (the first half is the three-color lamp video v.youku.com/v_show/id_XMTMwMjQ3MjM2OA==.html CTR-30 Flashing Christmas Tree Kit is composed of three circuit boards. Users can assemble the 37 LEDs alternately by welding and flashing alternately, showing the outline of the Christmas tree in the space (the viewing effect is better in the night environment). Production steps: Download address for production steps: pan.baidu.com/s/1qW5Plus Package Included: 1x 3D LED Flashing Christmas Tree Circuit Kit (optional)