DIY Create 3.7V Soldering Iron Educational and Science Toys
1.If the battery got hot in experiment, pls stop at once and check the circuit careful.
2.The legnth of Ni-Cr winding coil should be less than 1.2cm, the more the circle you made, the more power you'll have.
3.The Ni-Cr Wire must contact with soldering iron in case the temperature can't pass.
4.Please make sure the battery has enough power.
Item Type: DIY soldering iron
Material: Wood, Plastics etc.
Pls make sure the age older than 16 years old
1 pcs DIY Soldering iron