According to buddas reviews the E11 / UT01 emits more OTF lumens.
750-650 Lumens

Versus 587-527 over roughly the same time duration…. first 3-4 minutes after turn on.

The reviews were posted 2 months apart. Some variables could be measurement methods, condition of the batteries after 2 months of use, random sample variations…etc
taken from here:
Manker was kind enough to supply me a E11 for the review. [image] [image] Manker’s specs: - Max lumens output: 400lm (Eneloop Pro Ni-Mh battery), 800lm (IMR 14500 li-ion) - Circuit: Most efficiency constant current circuit, maximum runtime up to 266 hours - Material: Aircraft-grade aluminium body - Surface treatment: Premium Type III hard-anodized anti-abrasive finish - Clip: Titanium coated stainless steel clip. - Lens: Toughened ultra-clear glass lens with anti-reflective coating - T…
I received the Klarus Mi7 from GearBest the review. Here are Klarus specs for the Mi7 • CREE XP-L HI V3 LED, up to 50,000 hours life • Maximum output 700 Lumens; Maximum runtime 67 hours. • Small and lightweight for everyday carry (26.4g without battery.) • Battery Capacity Indication displays remaining power for easy monitoring • One Touch Access to Moon-light and High output levels • Unique high efficiency circuitwith broad voltage range to accommodate both AA (Primary/Rechargeable) and…