I only checked with one 18650 and it shows 1.4A on the multimeter.
Mine came with a limited warranty from Ultrafire, and in the data sheet, it said it can be used up to 8.4V,
anyone else received this same data sheet?
I will probably replace the driver for the Kaidomain one, but it would be good to know if it really can work at 8.4V, and also would love to know if being that way trustfire will launch an extension tube for 2*18650 like the X8's.
Here is my hypotheses. The crooked logo run of X9s draw 2.8A. Yavi, is your logo crooked or straight? Not a high probability on this one but you never know with these lights.
Diff Multimeter. Same Camera setting. The difference is the Target, the trees is half as before due to the Tropical cyclone that hit us.
I even feel its much2 brighter than the picture.
It lights up 250 Meters easily, was thinking how people in that Building/factory thought where its coming from.
Tried to do a Video of LD40 vs X9 KD drver but the result is crappy but easily shows the difference in brightness and throw. I think it more than triple the brightness of my LD40.
The problem is that this kind of measuring is very inaccurate. You get the right current when the resistance of the tailcap and the DMM is the same, and the DMM is accurate of course. If you use short and thick leads, sometimes you will measure much more current than the real when the tailcap is in the place, because the resistance of the tailcap is higher than the DMM+leads.
Vice versa if the resistance of the DMM is higher than the tailcap you will measure lower values.
So it would be the best, if you could equalize the resistances. But these are very low resistances, and hard to measure.
Do you understand what i want to say? My english is not good.