[Flashing LED Light Kit]: This is a DIY kit for LED with a simple circuit, designed for circuit and soldering beginners. can make private customized "" to his basic welding skills.[DIY electronic ] The 4-piece set has a competitive , giving you more to complete the welding. The FR4-A PCB board with a thickness of 1.66 mm has a transparent , making it easier for beginners to solder and DIY. Working voltage: 3-14V.[Great School Science Project]: The electronic DIY kit is used to install simple LED lights. It is used to help students learn basic electronic welding skills. This is a great science exhibition project. It is highly recommended that you and your child practice welding skills.[Intellectual Development] You can your own electronic . It helps to expand your thoughts and , and can also children and students. In this respect, it is very valuable.[Assembly kit]: This is a welding learning assembly kit. Basic welding skills are required. Learners should refer to the circuit and component list pictures in the product list to make this kit.The FR4-A PCB board with a thickness of 1.66 mm has a transparent , making it easier for beginners to solder and DIY. The of the 4-piece set is very competitive, giving you more to complete the welding.Colour:light greenMaterial:PCBSize:2.3CM x 2.3CMPackage Contents:4 * 5mm LED flash DIY kitOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.