http://www.techradar.com/news/oneplus-5t-lava-red-limited-edition-available-from-february-6

The OnePlus 5T has just unlocked its third color variant, Lava Red, which joins the base shade of Midnight Black and limited edition Sandstone White – although the latter has already sold out.

If Lava Red takes your fancy you'll need to act swiftly, as it's a limited edition color so will only be available while stocks last. The Sandstone White variant lasted less than two weeks before it sold out, so the clock is ticking.