Holding(s) in Company

Dialight PLC
28 June 2006



             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF LISTED COMPANY

     DIALIGHT PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     Royal Mail Trustees Limited
     As limited partner in Hermes UK Small Co Fund


3)   Please state whether notification indicates that it is 
     regarding the holding of the shareholder named in 2 above;
     in respect of a non-beneficial interest; or in the case of an
     individual holder if it is a holding of that person's spouse
     or children under the age of 18

     As 2 above


4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     Chase Nominees                       4,111,495


                                          4,111,495


5)   Number of shares/amount of stock acquired.

     Not known

6)   Percentage of issued Class 


7)   Number of shares/amount of stock disposed


8)   Percentage of issued Class 


9)   Class of security

     ORDINARY SHARES OF 1.89P EACH


10)  Date of transaction

     23-Jun-06


11)  Date listed company informed

     26-Jun-06


12)  Total holding following this notification

      4,111,495
               

13)  Total percentage holding of issued class following this notification
     
     13.161%


14)  Any additional information



15)  Name of contact and telephone number for queries

     C A BUCKLEY

     01480 447490


16)  Name and signature of duly authorised officer of the listed company
     responsible for making this notification

     C A BUCKLEY                             COMPANY SECRETARY


     Date of Notification .................28-Jun-06



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