white light

/W AY1 T L AY0 T/
noun
  1. 1

    Light, having a mixture of frequencies, being perceived as having no specific colour; such as sunlight.

  2. 2

    A white-coloured light or lamp

  3. 3

    (as the white light) The believed entrance to the afterlife, as occasionally reported of near-death experiences.

Source: https://en.wiktionary.org/wiki/white%20light