The product is super convenient for people to use. It needs no electrical connection, and it can power itself with the energy from the sun. It has been broadly used in many industries such as electric power, petroleum, chemical, metallurgy, environmental protection, pharmaceutical, aerospace, and fire protection. The product is not easy to break or crack. People can even put it in the dishwasher without the worry that the dishwasher would break it up. It has been broadly used in many industries such as electric power, petroleum, chemical, metallurgy, environmental protection, pharmaceutical, aerospace, and fire protection.