(Parts) SMD water lamp kit NE555+CD4017 Electronic welding practice board training DIY production

Welcome to my store

The company specializes in the production and research of various home appliances / automobiles and motorcycles / agricultural machinery / spare parts, and has a professional technical team.

We can help with any issues that arise

All products have been tested and sent out, worry-free after-sales

Due to the large number of brands, models, and categories, it is impossible to upload all of them.

If you can't find what you need in the store, you can contact our customer service staff.

Too many varieties. Even the same model has different accessories, and the same accessory can be used on different accessories.

Make no mistake. If you don't understand, you can send me a picture, and I will analyze and judge with you
PCB board+components (with instructions)
4 AAA battery boxes, batteries can be purchased by contacting customer service