DlY Electronic Weevil Eye Kit Photosensitivity LED Light Soldering Assembly Welding Practice Experiment For Beginner Learn Gift

The products which are suitable for electronic enthusiasts to study and repair circuits. We only guarantee that the products are in good condition before delivery, and cannot guarantee 100% success after installation. The installation of the circuit requires the buyer to have experience in the circuit, please read the product description carefully before payment.
Batteries are not included in the accessories !!!
After welding the insect's eyes, we can test the functionality of the circuit board by placing the 20mm button battery face up into the battery box. If the light is dim, you should see the LED light on. If not, please cover the sensor with your fingers for testing.
Battery model: CR2032
If the insect's eyes don't light up, don't worry! Starting with some simple questions, check your solder joints to ensure a good connection between your components and the circuit board. The solder should flow into the interior of the circuit board and not bounce around the component pins. Also, check to ensure that the transistor and LED lights are oriented correctly