News

June 15, 2010

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