Holding(s) in Company

Dialight PLC
21 February 2007

                           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.

CHASE NOMINEES LTD                      75,000
BNY NORWICH UNION NOMINEES LIMITED     189,826
CHASE GA GROUP NOMINEES LIMITED        488,522
CUIM NOMINEE LIMITED                   186,548
VIDACOS NOMINEES                        15,317

                    TOTAL              955,213

5)   Number of shares/amount of stock acquired.



6)   Percentage of issued Class 


7)   Number of shares/amount of stock disposed


8)   Percentage of issued Class 

1.28%

9)   Class of security

ORDINARY SHARES  OF 1.89P EACH

10)  Date of transaction



11)  Date company informed

19-FEB-07

12)  Total holding following this notification

955,213
               
13)  Total percentage holding of issued class following this notification 

3.01%


14)  Any additional information

NOTIFICATION OF PREVIOUSLY NOTIFIED HOLDING UNDER SECTION DTR5 OF THE FSA
DISCLOSURE AND TRANSPARENCY RULES - EXISTING SHARES WITH VOTING RIGHTS


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

C A BUCKLEY     -   COMPANY SECRETARY

     Date of Notification ..............   21-FEB-07 ..........





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