m30 drive?

[chewy78]

Is it direct drive, or is there a buck/boost circuit? I plan to use it with a 6p clone with either a 17670 or a 18650 lithium ion cell.

 

[chewy78]

i already have a m60l in a g2 host but want a warmer tint.

 

[roymail]

Is it direct drive, or is there a buck/boost circuit? I plan to use it with a 6p clone with either a 17670 or a 18650 lithium ion cell.

I don't know about the buck/boost circuit, sorry. But, I do know the M30 draws 1.2A according to Gene.

 

[Sgt. LED]

As far as I know it is boost only, hence the reason 2 cells will kill it in short order.

But I AM NOT GENE so take it with a grain of salt!

That said 1 17650 or 1 18650 is just what you need! DO IT! Be sure you get the M30W.

 

[Yoda4561]

It's a boost circuit, if it were direct drive there's no way you'd get over 40 lumens off a single CR123. IIRC the M30 gets around 160 off of a single 123, and the M30w gets 120. It's not 100% output regulated, so lower voltage batteries put out a bit less light, but it does boost down to around 1 volt. With a 3.7v lithium ion it's tossing out more light than the equivalent M60 model.

 

[Tim W]

... if it were direct drive there's no way you'd get over 40 lumens off a single CR123...

You sure about that? :thinking:

Tim

 

[Yoda4561]

***Double post**

 

[Yoda4561]

Yep, since my M60 operates direct drive on a single cr123a, and it's doing maybe 20-30?? A bit dimmer than a 30 lumen single AA energizer light from target. I guess if it's a really low Vf sample it might get like 60, but 130? Not even close. Not saying it's impossible to do on an LED but I don't think you're gonna see it from current gen XREs.

*edit: Oh, and when i called gene the other day with some questions about running the M30 in a G2, he confirmed it was a boost circuit,

 

[MrGman]

I have one coming and we will know soon after the new year exactly what it measures on 1 X 18650.

 

[Yoda4561]

Cool stuff, is it the warm or normal version? Doing the math guestimate the at 1.2*3.8v it's around 4.56 watts for the M30, and .75*6v for 4.5 watts with the m60. I'm not sure how much the Lithium ions and lithium primaries dip under load but the M30 should be a bit brighter on a fresh battery if the circuits have similar efficiency.