OP got ripped off. Buy genuine Samsung, LG, or Sony cells so you actually know what the cell is capable of.
Efest is generally regarded as a company that sells re-wraps with grossly inflated ratings on the label. These are efest knock-offs, so god only knows what is really under that wrapper. Probably nothing good though.
They may be safe enough to use in a regulated mod at lower power levels, but if they start to get hot (especially when the battery indicator shows they're getting low) I'd dump them or pick up an 18650 flashlight to use them in. Chances are though they'll just sag like mad, leading to "low battery" messages long before you'd expect.
The biggest concern is that since we have no idea what is under the wrap and cannot trust the label, we have no idea of where the "danger zone" might be and no idea of how they will react should they happen to fail. They could pee a little electrolyte solution, or they could grenade if they're a mislabeled ICR.
Maybe chalk it up as a loss and send them to Mooch so he can test them and add them to the database, for everyone's benefit.