jetbeam question

[2000xlt]

This is supposed rated at 240 lm, what is the "out the front" lm rating


http://cgi.ebay.com/JETBeam-16OUTPU...yZ106987QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

 

[xcel730]

I don't have that model, but my best guess is that it won't be 240lms out the front.

 

[Zenster]

I can't measure it's output, but I can say that the JetBeam I MK IBC on high compared to several of my other various lights of "known" stated output appears to be around 100 lumens, give or take.

I can say that it's plenty for an EDC type light, and I have gotten to like it better than my NDI because of the Jet's UI.
The only big "gotcha" about the Jet I MK IBC is that damn switch. It's really a step backwards. You have to poke your finger in just right, and hard, to turn it on. I've gotten sort of used to the difficult operation of the Jet switch, but it still annoys me.
It's certainly impossible to turn it on by accident.

I'm hoping Jet comes out with an improved upgrade replacement for the switch at some point. Really, the switch sucks, which annoys me even more that I like the Jet better than the NDI (in spite of the switch).

 

[merlocka]

This is the MKII R. Although they claim Q5, the MKII R was originally released with a Q4. Perhaps they were retrofitted, but I'd be wary of this. Regardless of bin, the MKII R circuit is fairly poor. Low level efficiency is bad, and max output isn't that great either. 240 Lumen is likely extremely overrated. If it's the same MKII R that I have, it won't be as bright as a NCDI, which is rated at 130 lumen.

 

[PhantomPhoton]

The first picture is actually a MkIIx... that would be the one from about a year ago with a Cree P4. Later pictures are of a MkIIR. And the MkIIR as mentioned above didn't come with a Q5 (as far as I can remember).

Either way the 240 lumen marketing is the maximum spec of the Q5 emitter. Out the front it will depend on what type of AA cell you are going to run it with. You'll likely see ~120 out the front from a quality NiMh AA. A bit more from a 14500 LiIon. You aren't in any danger of getting 200 out the front, sorry.

The price isn't bad fro a MkIIR, it even isn't terrible for an old MkIIx. But do some research on the light so you know its shortcomings.