REG – Dialight PLC – Holding(s) in Company
For best results when printing this announcement, please click on the link below:http://pdf.reuters.com/Regnews/regnews.asp?i=43059c3bf0e37541&u=urn:newsml:reuters.com:20100615:nRSO6786NaRNS Number : 6786NDialight PLC15 June 2010  TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES  1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached (ii):  Dialight Plc  2. Reason for the notification:  An acquisition or disposal of voting rights  3. Full name of person(s) subject to the notification obligation:  Impax Asset Management Limited  4. Full name of shareholder(s) (if different from 3.):  Impax Environmental Markets plc  Impax Environmental Markets (Ireland) Fund  Parvest Environmental Opportunities Fund  5. Date of the transaction (and date on which the threshold is crossed or reached if different):  14 June 2010  6. Date on which issuer notified:  15 June 2010  7. Threshold(s) that is/are crossed or reached:  7%  8. Notified details:  A: Voting rights attached to shares   Class/type of shares Situation previous to the Triggering transaction Resulting situation after the triggering transaction.  Number of shares     Number of voting rights                          Number of shares                                      Number of voting rights % of voting rights  Direct               Direct                                           Indirect                                              Direct                  Indirect            OrdinaryGB0033057794 2,216,176                                        2,216,176                                             2,118,911               Nil                2,118,911 Nil 6.705%   B: Financial Instruments   Resulting situation after the triggering transaction  Type of financial instrument                         Expiration date Exercise/Conversion Period/Date Number of voting rights that my be acquired if the instrument is exercised/converted % of voting rights  n/a                                                  n/a             n/a                             n/a                                                                                  n/a                  C: Financial Instruments with similar economic effect to Qualifying Financial Instruments   Resulting situation after the triggering transaction  Type of financial instrument                         Exercise price Expiration date Exercise/Conversion period Number of voting rights instrument refers to % of voting rights  N/A                                                  N/A            N/A             N/A                        N/A                                          Nominal            %  N/A                                                  N/A              Total (A+B+C)   Number of voting rights % of voting rights  2,118,911               6.705%               9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held,if applicable:  Impax Environmental Markets plc) 1,063,266 shares 3.36%)  Impax Environmental Markets (Ireland) Fund (625,646 shares 1.98%)  Parvest Environmental Opportunities Fund (429,999 shares 1.36%)  10. Name of the proxy holder:  N/A  11. Number of voting rights proxy holder will cease to hold:  N/A  12. Date on which proxy holder will cease to hold voting rights:  N/A  13. Additional information:  14. Contact name:  Impax – Compliance officer 020 7434 1122  Dialight plc – Nick Giles 01638 778641  Date: 15th June 2010  This information is provided by RNSThe company news service from the London Stock Exchange