Abstract: A lighting system for use in a high-moisture environment, such as a swimming pool, includes a lighting unit having a housing and at least one light-emitting device positioned within the housing. A power supply provides power to the light-emitting device. A receiver positioned within the housing operates with a LoRa modulation format and receives signals at an ISM band operating frequency of substantially between 433.05-434.79 MHz (EU433). A mobile control unit located remote from the lighting unit is configured to transmit at least one wireless control signal to the receiver at a frequency between 433.05-434.79 MHz, whereby the at least one control signal controls or changes a characteristic of the at least one light-emitting device, such as an on/off state, a color, a lighting effect, or a pattern of display. Related systems and methods for installing a lighting system for use in a high-moisture environment are also disclosed.