Design description: The packaging of the bulb shape indicates the relationship with the lamp. It is designed with various familiar bulb outlines. The frosted packaging shell is also the lamp itself. This product can be hung conveniently, and the magnetic material on the back can be adsorbed to some position such as the refrigerator. Different bulb shapes awaken people's understanding and judgment of various brightness of the lamp. The three forms correspond to the high, medium and low brightness of the light. And the brightness of the light could be judged visually.