Sunnytech Steady on/Flashing Solar Leds Light Traffic Sign Brick Dock Deck Road Studs Grass Garden (yellow Steady ON) Attention: The light is always ON, there is no ON/OFF switch button. The light on automatically at light, and off automatically in day time. Luminosity colors: Red/Blue /Green /Yellow /White .Luminous mode: Steady ON Mode/ or Strobeflash MODE(flash 2 times/second) Work time: 60 hours above for Varying Type; and more than 12 hours for constant type(standard luminosity intensity) SIZE: (Dia)50x (H)32 mm