A light device includes an elongated arm comprising a plurality of light emitting diodes (“LEDs”) disposed at a first end of the elongated arm and configured to be positioned inside an oral cavity and to deliver one of a plurality of types of light treatments to the inside of the oral cavity according to a selected one of a plurality of operating modes. The light device further includes a body coupled to the elongated arm at a second end of the elongated arm. The body includes a battery for providing power to the LEDs. The body further includes a mode module coupled to the battery and the plurality of LEDs and configured to deliver power from the battery to at least one of the plurality of LEDS based on the selected operating mode.
