Abstract: The present disclosure is for a LED submersible light comprising a light-emitting lampshade in thread connection with a back cover to form a closed chamber housing a circuit board, lamp beads, batteries, and a control switch. A silica gel sealing ring is disposed in a positioning groove along an inner surface of the back cover. When engaged the sealing ring expands laterally in both directions to fill up spaces between internal and external threads and the positioning groove.

Abstract: The present invention discloses a light-emitting diode light string control system, which comprises: a switching unit having a power input end, a power output end, and a controlled end; the power output end is connected to the light-emitting diode light string; a control unit, and the control unit is connected to the controlled end of the switching unit; a second power generating unit, and the second power generating unit is connected to the light-emitting diode light string.

Abstract: The present invention discloses a light-emitting diode light string control system, which comprises: a switching unit having a power input end, a power output end, and a controlled end; the power output end is connected to the light-emitting diode light string; a control unit, and the control unit is connected to the controlled end of the switching unit; a second power generating unit, and the second power generating unit is connected to the light-emitting diode light string.