Abstract: Photobiomodulation therapy systems provide a highly effective way to treat many common ailments to the human body. Light therapy systems may enable two or more light therapy devices to be communicatively coupled together in various ways. The light therapy systems include a first light device and a second light device arranged and configured to be communicatively coupled to the first light device. Each of the light devices may include a housing, a communication module, and a plurality of lights arranged and configured to emit at least one of red light and near infrared light.