IS ICStation DIY 3D Christmas Tree Soldering STEM Project Kit

The solder practice kit will become a beautiful flashing Xmas tree when assemble complete. 36pcs 7-color LED diodes will make a bright colorful and wonderful light at night. Not only for practice the tree can also be a creative gift and nice decoration especially in Christmas. The components name are well marked on the PCB board so you can easily find where the component should place. Detailed English user manual and responsive service team enable the assemble process easier for soldering beginners and electronic learners. PDF instruction please refer to https://images-na.ssl-images-amazon.com/images/I/A198l3IXCYL.pdf Manufactured by IS. DC 4.5V-5V working voltage can be powered by 3 x AA batteries or USB power adapter directly (Comes with the battery holder and USB cable). Size of the finished tree: 60x60x136mm/2.36"x2.36"x5.35" (L*W*H) weight 60(g)/0.14(lbs) If some leds don't light please make sure all components are in right direction and correct place. Please check if there are some solder points are in poor connection which is very important when testing. Welcome to contact our service team if you have any question. We appreciate every purchase. 3D Christmas tree DIY soldering kit is designed to improve users' electronics knowledge and soldering skills. It is perfect for school basic electronics projects ASP(After School Program) and STEM education. You will need a set of soldering tools(not included in the product) such as electric iron solder wire and so on to finish the assemble and soldering process.