Holding(s) in Company

Dialight PLC
14 December 2006

                NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

DIALIGHT PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

ABERFORTH PARTNERSHIP LLP

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

IN RESPECT OF SHAREHOLDERS IN (2) ABOVE

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

NORTRUST NOMINEES A/C ABERFRTH                     4,145,473
THE CHURCH COMMISSIONERS FOR ENGLAND (CHAS           318,800
BANK OF IRELAND NOMINEES LTD                         219,175
STATE STREET NOMINEES LTD A/C JD59                   480,307  

                                        TOTAL      5,163,755

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 ownership change



11)  Date listed company informed

13-DEC-06 

12)  Total holding following this notification

5,163,755
               
13)  Total percentage holding of issued class following this notification

16.53%

14)  Any additional information



15)  Name of contact and telephone number for queries

C A BUCKLEY

1480 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 ... 14-DEC-06  .....................





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