This soldering kit contains all the parts needed to build a solar-powered night light. To assemble it, simply solder the included components together using a small amount of solder. The circuit is then fully assembled and ready for use. How the circuit works: During the day, the energy generated by the solar cell is stored in the battery and powers a warm-white LED with approximately 25 mA, which turns on automatically at dusk. Depending on the battery’s charge level, the LED stays on all night. When the battery charge is low, the LED turns off to prevent the battery from being deeply discharged. Applications: Solar garden light, solar house number lighting, solar night light, lighting for birdhouses and decorative objects, and much more for the home and garden. Package Contents: Warm-white LED, battery, battery holder, coil, solar cell, QX5252 charging circuit, instructions