The Nitecore MH10 v2 is a general-use flashlight powered by a 21700 Li-ion rechargeable battery, with onboard USB charging, and the ability to use a great many different sizes of Li-ion cells.

The Acebeam TK16 is a 1x16340/CR123A everyday carry light with three emitters and a tail e-switch. It resembles a cross between a Lumintop FW3A and an Olight S1. It combines excellent power efficiency, class-leading max output, and very good color rendering.

The Fenix HM50R is a small right-angle flashlight/headlamp using an included 16340 rechargeable battery and USB charging, or disposable CR123A battery. The HM50R features an intentional slow rampdown of its brightness during use designed to prolong runtime despite having hardware capable of sustaining full brightness. There is no way to turn this feature off. It seems like the HM50R is designed for inattentive users, or to compete with low-quality headlamps that advertise absurdly unrealistic runtimes.