If you’re in the US you might want to buy from MtnElectronics. It’ll be a lot faster. Here’s the XHP70.2 1A, which is cool white — Cree XHP70.2 P2 1A on DTP MCPCB. There’s options right there on the page to have it mounted on the mcpcb for you. You want the 6v, 20mm option for your host.