Professional Grade DIY RGB 4 Piece Solar Garden Spike 4 in 1 KitPRODUCT FEATURES: 1. Solar powered, energy saving 2. No AC or DC power is needed, easy to install 3. Auto sensor, the light can automatically charge itself in the daytime (enough sunlight) and light up in a dark environment 4. Perfect for pool, pond, garden, path road, and other decoration & lighting 5. In order to verify that the light is ready, cover the solar panel with your hand to see if the lamp turns on. If the lamp isn't lit up, you should