Holding(s) in Company

Dialight PLC
22 June 2006


                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY


     DIALIGHT PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST


     AVIVA PLC AND ITS SUBSIDIARIES


3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or 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.

     MORLEY FUND MANAGEMENT LIMITED

     BNY NORWICH UNION NOMINEES LIMITED               245,268
     CHASE GA GROUP NOMINEES LIMITED                  830,055
     CUIM NOMINEE LIMITED                             236,716
     VIDACOS NOMINEES                                  16,623

                                   TOTAL            1,328,662


5)   Number of shares/amount of stock acquired.

    



6)   Percentage of issued Class



7)   Number of shares/amount of stock disposed

     400,000

8)   Percentage of issued Class


     1.28%

9)   Class of security

     ORDINARY SHARES OF 1.89P EACH


10)  Date of transaction

     20 JUNE 06


11)  Date company informed

     21 JUNE 06


12)  Total holding following this notification

     1,328,662

               
13)  Total percentage holding of issued class following this notification

     4.25%



14)  Any additional information




15)  Name of contact and telephone number for queries

     C A BUCKLEY
     01480 447490


16)  Name and signature of authorised company official responsible for 
     making this notification



     Date of Notification     22 JUNE 2006

                      This information is provided by RNS
            The company news service from the London Stock Exchange