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

BRITEL FUND TRUSTEES FOR TRUSTEES OF BT PENSION SCHEME
(BRITEL IS OWNER OF HERMES PENSIONS MANAG, HERMES INV MANAG,
HERMES ASSURED AND HERMES FOCUS MANAGEMENT)

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 ON BEHALF OF HERMES UK SMALL COMPANIES FOCUS FUND   7,629,389

                                                                   ---------
                                                                   7,629,389
                                                                   =========

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

14-DEC-06

11)  Date listed company informed

14-DEC-06 

12)  Total holding following this notification

7,629,389
               
13)  Total percentage holding of issued class following this notification

24.422%

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






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