Dialight : Voting Instruction Instruction Card for Annual General Meeting 2023

Please note that your votes must be registered no later than 4.30pm on Friday, 12 May 2023.

Notes

• This letter is not a summary of the matters covered in the Notice of AGM and should not be regarded as a substitute for reading the Notice of AGM. You should read the Notice of AGM before taking any decisions in relation to the business to be considered at the AGM.
• Shareholders should bring this letter to gain admittance to the AGM in person.
• If you wish to receive paper copies of the Notice of AGM and the Annual Report and Accounts 2022 or future documentation by post, please write to Equiniti Limited, Aspect House, Spencer Road, Lancing, West Sussex BN99 6DA quoting your Shareholder Reference Number.
• You have received this letter because, following consultation, you are deemed to have consented to receive shareholder documentation by means of a website, with paper notification of the publication of any documents on our website.

• Those shareholders who have accepted this form of communication have enabled us to minimise the amount of printed documentation we produce, which has helped us to reduce our impact on the environment.
• We will conduct the AGM as a 'hybrid' meeting, as permitted by our Articles of Association adopted at our 2020 AGM.
  If you wish to attend the meeting remotely via an electronic platform, please see the Notice of Meeting for details on how to do this.
• If you are unable or do not wish to vote online, or you have any questions regarding this notification or are unable to locate or access the documents, please call the Dialight plc Shareholder Helpline, administered by Equiniti,
  on +44 (0)371 384 2495*.

• Lines are open from 8:30am to 5:30pm, Monday to Friday, excluding public holidays in England and Wales.