BEGIN:VCALENDAR PRODID:-//github.com/rianjs/ical.net//NONSGML ical.net 4.0//EN VERSION:2.0 BEGIN:VEVENT DTEND:20260624T123000Z DTSTAMP:20260521T171126Z DTSTART:20260624T110000Z ORGANIZER: SEQUENCE:0 SUMMARY:SLL Webinar: New Approach to Lighting UID:CIBSE-EVENT-a1EQx0000067V23MAE END:VEVENT END:VCALENDAR