Photobiomodulation therapy systems and devices

A method of operating a light therapy system comprising a first light therapy device and a second light therapy device, the method comprising:

• powering on, via a first power button, the first light therapy device, wherein the first light therapy device comprises a first housing, a first printed circuit board assembly coupled to the first housing, a first plurality of LEDs electrically coupled to the first printed circuit board assembly, wherein the first plurality of LEDs is arranged and configured to emit light through at least one aperture of the first housing, and a first control panel coupled to the first housing, the first control panel comprising a first plurality of buttons, wherein when the first light therapy device is powered on, the first light therapy device is configured to operate in an independent mode;
• configuring, via the first plurality of buttons, the first light therapy device to operate in a follow mode;
• powering on, via a second power button, the second light therapy device, wherein the second light therapy device comprises a second housing, a second printed circuit board assembly coupled to the second housing, a second plurality of LEDs electrically coupled to the second printed circuit board assembly, wherein the second plurality of LEDs is arranged and configured to emit light through at least one aperture of the second housing, and a second control panel coupled to the second housing, the second control panel comprising a second plurality of buttons, wherein when the second light therapy device is powered on, the second light therapy device is configured to operate in the independent mode;
• configuring, via the second plurality of buttons, the second light therapy device to operate in a lead mode,
• wherein when the first light therapy device operates in the independent mode, the first light therapy device performs operations as instructed by the first light therapy device,
• wherein when the second light therapy device operates in the independent mode, the second light therapy device performs operations as instructed by the second light therapy device, and
• wherein when the second light therapy device operates in the lead mode and the first light therapy device operates in the follow mode, the first light therapy device performs operations as instructed by the second light therapy device.