https://www.futureelectronics.com/search/?selectedTab=products&q=v2::manufacturerName:Lumileds&text=v2 . LUXEON V2 is a a domed 2mm high power white LED designed . LUXEON V2 is designed for flux and efficacy leadership. To ensure fast time to market, LUXEON V2 is optically and footprint compatible to many standard 3535 high power packages, reducing expenditure of engineering resources. https://youtu.be/qfrwvP7UoiE
