The material of this solar crack light is glass + ABS. It is solar powered and waterproof. The lights are on at dark, and the lights are off during the day. And there is switch control. It is suitable for courtyards, gardens, lawns, and balcony lights where there is sunlight. We have two lighting effects for you to choose from. One is warm light and the other is colorful light. Our price is the price of warm light.