[STEAM Toy DIY Handicraft] Primary school students make their own intelligent light-controlled street lamp automatic sensor lamp technology (without batteries)

An automatic sensor light that turns on automatically when it gets dark and turns off automatically when it gets light.

Environmentally friendly experimental materials, all experimental materials are made of safe, non-toxic and recyclable materials.
There are thickened ziplock bags, which are waterproof, moisture-proof, tear-resistant and recyclable.

Smart light-controlled lights can automatically turn off when there is light and automatically light up when there is no light because of the function of photosensors. Photosensors are very sensitive to light. When there is no light, the resistance becomes very small, allowing current to pass, and the street lights will turn on. When there is light, the resistance becomes very large, blocking the flow of current, and the street light goes out.