Holding(s) in Company

Dialight PLC
14 December 2006

                            SCHEDULE 10

            NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF LISTED COMPANY

DIALIGHT PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

ROYAL MAIL TRUSTEES LIMITED
AS LIMITED PARTNER IN HERMES UK SMALL CO FUND

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                                                7,629,389

                                                             __________

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

5)   Number of shares/amount of stock acquired.

NOT KNOWN

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



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



9)   Class of security

ORDINARY SHARES OF 1.89P EACH

10)  Date of transaction

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
     (any treasury shares held by the listed company should not be taken
     into account when calculating percentage)

24.422%

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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