about this item 2021 Upgraded Deck Light: The 2021 new solar deck lights have a constant cycle of changing colors (the color changes automatically and cannot be set to a specific color), which is suitable for daily lighting and decoration. Creates a nice atmosphere for backyard, patio, staircase, deck, fence, garden, porch, driveway, etc. Auto Power On Mode: The solar step light does not have a switch, just pull out the insulating strip to use it. On sunny days, it only takes 4-5 hours to fully charge. It can automatically turn on at dusk and turn off at dawn. WEATHER RESISTANT: With a solid ABS construction and high-quality solar panel, this solar step light is built to withstand rain, wind, or small snowy days. EASY TO INSTALL: The solar stair lights can be installed anywhere that can be screwed. The size is suitable for the roof and fence, you don't have to worry about tripping. Warranty: In addition, in any case you have a problem about the step light, just contact us, we will help you solve the problem as soon as possible.