Description 4-Piece Set 5mm LED Flash DIY Kit Electronics Kit PCB Circuit [Flashing LED Light Kit]: This DIY flashing LED light kit with a simple circuit is specially designed for beginners in circuit design and soldering. Anyone can use it to create their own unique products and demonstrate their basic soldering skills. [Electronics DIY Products] The 4-piece kit is affordable and offers you more soldering options. The 1.66mm thick FR4-A circuit board is transparently marked, making soldering and DIY projects easier for beginners. Operating voltage: 3-14V. [Great School Project]: With this electronics DIY kit, you can install simple LED lights and teach students basic electronic soldering skills. It's a great project for a science fair. We highly recommend that you and your child practice soldering skills. [Intellectual Development] You can assemble your own electronic products. This fosters thought processes and imagination and can educate children and students. In this respect, it is very valuable. [Assembly Kit]: This kit is a learning set for soldering. Basic soldering skills are required. Beginners are advised to use the circuit and component diagrams in the product listing. The 1.66 mm thick FR4-A circuit board is transparently marked, making soldering and DIY projects easier for beginners. The price of the 4-piece set is extremely attractive and offers you more soldering opportunities. Color: Light Green Material: Circuit Board Size: 2.3 cm x 2.3 cm Package Contents: 4 x 5 mm LED Flash Kit Only the above package contents are included; other products are not included. Note: Lighting conditions and different displays may cause the color of the item shown to differ slightly from the original. The permissible measurement deviation is +/- 1–3 cm.