Hello everone. Here’s my review on Convoy M21K LHP73B 5000K & Beamshots Comparison vs M21J SBT90.2. Thanks for a good place to share content. Please subscribe 
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“Quite cold, below 30°C” 
Seems like you missed the momentary turbo feature
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Hello sir. Yes. My mistake. Actually high is very bright. My sample has a dark spot in the led. Its led may get more damaged if I access long turbo. Thank you for watching & your support sir:blush:.
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Thanks for your review. Questions pls: what battery was used during testing? Was it a high-current battery like EVE 40/50PL, Ampace JP40, or Tenpower 50GX?
Judging by colour at 6:50 mark, maybe EVE 50PL?
Great catch thanks. AFAICT this side of the battery is identical to my Pre Production EVE 50PL.
Is this a warning against activating Turbo while useful powerful tabless battery with this light? I think I am going to test and use mine with Molicel P45B until the coast is clear.
Has any owner here used tabless battery with your M21K + LHP75B?
Of course, the 50XG and also P42B which is not tabless and old and bad compared to new cells 
but I didn’t do any measurements as I don’t have equipment to do it. They both worked fine.
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Thanks. With 50PL in Turbo mode, could you estimate what was the longest time you held down the button? For example, for sure more than 30 seconds?
Asking for my own light’s protection. I will be measurement ANSI throw and that means Turbo for 30 seconds.