Solar Powered---Solar powered power supply design is energy-saving and environmentally friendly, built-in 500mAh battery. Automatically absorb sunlight throughout the day and convert it into electricity in the battery. No UV rays, energy saving and environmentally friendly. Easy to Use---First time use (make sure to turn on the switch), the solar deck lights need to charge during the day for 6-8 hours under the sun, and will automatically light up for 8-12 hours at night. It can be mounted with the screws provided. IP68 Waterproof---The Solar deck lights are made of aluminum alloy with IP68 waterproof system against all kinds of terrible weather like rainstorm, blizzard or daily heat for a long time, which makes it suitable for most kinds of environments. Widely Application---The Solar deck lights are suitable for all kinds of scenes, such as patio, dock, path, driveway, garden, sidewalk, step, stairs, etc. Withstand pressure for running cars (up to 20 tons), Safer on the way home!