Holding(s) in Company

Dialight PLC
21 June 2007


             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF LISTED 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 
     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.

TOTAL

5)   Number of shares/amount of stock acquired.



6)   Percentage of issued Class (any treasury shares held by the
     listed company should not be taken into account when
     calculating percentage)



7)   Number of shares/amount of stock disposed

198,305

8)   Percentage of issued Class (any treasury shares held by the
     listed company should not be taken into account when
     calculating percentage)

0.63

9)   Class of security

ORDINARY SHARES OF 1.89P EACH

10)  Date of transaction

19-JUN-2007

11)  Date listed company informed

21-JUN-2007

12)  Total holding following this notification

LESS THAN 3%
               
13)  Total percentage holding of issued class following this notification

LESS THAN 3%

14)  Any additional information

3% TO 2% CHANGE AT DIRECT INTEREST LEVEL

15)  Name of contact and telephone number for queries

CA BUCKLEY
01480 447490

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

     C A BUCKLEY

     Date of Notification .....   21-JUN-07 ...................






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