if this is the first 7 X xml, i think keygos trying to be a important brand like Ultrafire and trustfire with in chinese brands. Unless its not a false attempt to make this design :)
Very heavy and floody...I can pass, though I'd darn near pay to be there when one of you buys it and fires it up! :p
so we'll see 9xml (budget, not >$500) before....?....August
It looks just like the tr-j12 and i asked another seller about the + button's of the batteries and they said they do not stick out from the sides of the battery they might be like king kongs no good for series use with out mods ? ill wait for a trustfire version i think
I have a feeling that it is driven the same as the TR-J12. Coz it can use 2 x 18650 which is the same as the TR-J12. At such drive levels, there really is not much difference in OTF lumens between 5 and 7 XM-Ls.
Assuming it's the same driver as the TR-J12, is there a better driver available now that would make this light a wow factor type of light? (safely) Or do we have to wait until another company produces it with a better (new) driver?
we won't know until someone measures the this, and the trj12...
Glad you metioned it though - I have the KD 9xml driver and was going to pot it but I'll take good measurements first.
1" copper pipe is a perfect pot for it.
Very nice find.
Assume each LED is actually driven at close to 3A this is close to 12.6 watts each XM-L = 88WATTS
With 12.6V input under load less than 12V. Say 12V to be nice.
Say 12V input and 7.35A = 88 WATTS
With just 4800mAh (more like 4000mAh) you will get amazing OTF lumens for 20~30 minutes of 3 IMR 26650 cells.
Good Hosts for a copper heatsink build and nice U2 LED of the highest bin in 6500 tint.
bigC
That's what i am hoping for too. (willing to pay 100 bucks for that for the flashlight and if replacement drivers are available then it'd be way cool LOL!) But likely to be 99.9999% impossible...sigh.
There is no way any driver of such size (say 30-35mm) can handle the heat, and most of such stuff are not super efficient anyway + bad heatsinking compared to how the emitters/MCPCBs are heatsinked (like your Varapower Turbo, no driver and heatexchanger and stuff). Take 90% eff which is already very good, that's 8.8 watts of pure heat, like a XM-L gunned to the limit.
Even 40W is already a wee bit pushing it. (eg DRY)
It will be more like 1 amp per led
someone be the pig on this one and review it. It looks great. :)
Benckie -
All you have to do is go to the website and scan down to the "Features" section and you'll see:
- This TRUSTFIRE torch uses of a 7x CREE XM-L T6 LED, producing very bright beam of light.
The caps on TrustFire is for emphasis. I wonder if someone at Keygos goofed - or if they are trying to gain some credibility by including the TrusFire name???
Pulled the trigger / took one for the team.
Hope it's worth it. ;)
Thanks....do try it with 3 x 18650 as well as 2x18650. Do you have a lux meter? I hope that it's > 3000L OTF, then i'll get one.
I cant wait for you to post pics on it already. It looks tempting, but never heard of the brand. still a noob at these things..
I think you can use the Kaidomain 7 LED driver. $20 i think. Some German forum already modded the J12 with the 5 LED version.
But if you cant use the torch for long periods of time, then is there much use to it? Just for showing off? :D
I have little faith in eBay and I can not see the trustfire 7 x XML in any trusted online stores, so... I'll wait.
At best, this thing is a gimmick. I am very familiar with what it takes to generate that kind of light properly. I have built several very high power flashlights (like over 15,000 lumens OTF) using Bridgelux arrays. At 80-100 watts of power this thing will be frying bacon in no time.
For passive cooling Bridgelux recommends at least 10 square inches of heat sink fins for every watt dissipated... you think this thing has 6+ square feet of surface area? The only way to get rid of that kind of heat is using a fan. See Thermal Management of Bridgelux LED Arrays for a good overview of LED heat management
Not sure why anybody would think this is driven @ 3A per LED. This is most likely a TR-J12 with 2 extra LEDs. You'll get a few more lumens and a little less throw than the TR-J12. I'd get one if I didn't have the J12 already.