The following precautions should be taken when you install Fountain light：
Electrical safety: Make sure the fountain lights are installed by a qualified electrician and the wiring is properly grounded. Also, ensure that the lights are rated for outdoor use and are waterproof.
Maintenance: Regularly inspect the lights and replace any damaged or worn components. Keep the light fixtures clean and free of debris to prevent buildup and potential fire hazards.
Water quality: Check the water quality regularly and ensure that it's not corrosive to the light fixtures. Corrosive water can cause damage to the lights and increase the risk of electrical hazards.
Avoid touching the lights: Don't touch the lights when they're turned on, as they can become hot and cause burns. Also, avoid standing in the water or touching the fountain when the lights are on.
Turn off the lights when not in use: Turn off the lights when the fountain is not in use to conserve energy and prevent wear and tear on the light fixtures.
By following these precautions, you can help ensure the safety and longevity of your fountain lights.