[Review] Convoy S12 ( 3 x SST-20 / 219C, 21700 ) - Output, Power and Thermal Regulation Tests!

LED Flashlights – General Info Other Battery Type Flashlights
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I was about to order S12, but on 30% level output S12 is lower then S21A at same mode.
According this review Convoy S21A (Short Technical Review) S21A has 683 lumens at 30. S21 estimated has 500 lumens at 30.