Hey, freeme, thank you for bringing us all these deals!
I use the original FT02 a lot and my only complaint is the high parasitic drain. I see they fixed that in this new version.
Can you twist Banggood/Astrolux arm a bit and get them to sell us these new drivers so I can upgrade my old FT02?
This light looks awesome and would be perfect for my dad, but I’m still a little nervous about the high parasitic drain the older model of this light has. I did notice they included this on the website about this model though:
“XHP70.2 version improved the circuit, and the weakness will disappear. such as breathing lamp power consumption; charging current increased from 1A to 1.4A”
I wish someone had this light and could confirm this to be true.
On a separate note, what is the recommended 21700 battery for this light? I’ve never owned a 21700 light before so I don’t know much about them.
It is not the breathing led on the first version that uses so much power, with led-breathing off the parasitic drain is still dramatic. But I hope that it is the language problems that tells you the wrong thing and they indeed fixed the parasitic drain of the FT02.
Just received the FT02 XHP70.2 awhile ago, haven’t had time to test it much, but I did some simple measurements — and was mostly underwhelmed by the result…
Ceiling bounce with lux meter, I estimate the max brightness is around 3000 lumens only (far from the claimed 4600 lumens). Again these are just my rough estimates comparing with other flashlights (if I compare with my ceiling bounce lux meter reading of FT03 with XHP50.2 has a significantly higher reading, or even a Convoy M3 with XHP70.2 also gives a higher lux reading). Again, my lux meter reading and ceiling bounce are not accurate, but hopefully gives some idea…
(my unscientifically-controlled ceiling bounce test in a small enclosed room with a lux meter:
FT02 XHP70.2 ~ 3000+ lux
FT03 XHP50.2 ~ 4000+ lux
M3 XHP70.2 ~ nearly 4000 lux)
I measure only about 7-8 Amps tailcap current (how much lumens approximately would 7-8Amps tailcap current on an XHP70.2 flashlight give out)?
(I’m using a fully-charged Liitokala Lii-40A 4000mah 21700 battery only when I measured the tailcap current; it’s not a very high-drain 21700 battery… but still…)
Also tried measuring the parasitic drain, and it has indeed high parasitic drain — I measured 4-5mA (0.004-0.005A), even though the LED is not “breathing” pattern. So that means it does have a high parasitic drain.