The present invention relates to a sun visor (1) for a vehicle (100). The sun visor comprises a light source (6, 7) for providing illumination within the vehicle, and a printed electronic circuit (4) located within the sun visor for controlling operation of the light source. The sun visor may include a light dispersion device (10) for dispersing light emitted by the light source, which may include a body portion (11) extending over the printed electronic circuit and a light emission portion (12) extending around the body portion and arranged to transmit light from the light source to the outside of the sun visor.