<prompt> Woods lamp is made up of -9 nickel oxide with 6 barium silicate9 nickel oxide with 9 barium silicate6 nickel oxide with 6 barium silicate9 nickel oxide with barium silicate  <response>: Woods Lamp It is a low intensity ultraviolet light360nm emitted by a high pressure mercury lamp fitted with a special filter made up of 9 nickel oxide and silica. 