on the advertising header. When you press the switch button, the corresponding light will light up. It offers an attractive way to display your light bulbs, improving customers' desire to buy your products and adding to the rate of impulse buysThere are 4 layer shelves, 4 shelves provides plenty of room for your products, each of them equipped with 1 sets acrylic boards, assisting you in separating and categorizing different types of light bulbs well.2. product Parameter (specification)Structure