People who cannot afford to purchase professional lighting units often resort to using halogen worklights. This project allows you to add industry standard PAR56 worklights to the unit. Unlike other designs, these doors are not fixed to the unit, and can be removed oompletely, or rotated to any angle. Uses standard steel brackets available from any hardward store

http://www.instructables.com/id/Add-a-barndoor-to-a-worklight/