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I've been told that it's a felony in the USA to have a Class IV laser product in a public place (even if it's not being used). Does anyone know about this?

Yes, I'm very interested...I just have no idea when I'm gonna get any money... >_>

Mm. I know someone with an oscilloscope, and he knows how to use it, but I'm not ready to spend any money on any laser parts right now. Thanks anyway, though. But, I wonder...what about just putting a 1ohm resistor in series with the driver and battery, and measuring mV across it? Won't that...

Yes, but they're only above the nominal voltage for a short period of time, especially when under a considerable load.

Thanks. What's the max your meter says it can handle?

Yeah. You could do like I did, with 3 3.7V cells.

It's listed as needing 2.25V, and I'm thinking an SF-AW210 at 170mA, which was about 5.15V or so.

Just 2.4V, nominal voltage for two Ni-MH rechargeables.

This time, I meant about the actual driver, not the current test at 2.4V.

It's quite alright, I'm not in anything of a hurry, just curious.

Did you get around to testing it yet, Eudaimonium?

*Twiddles thumbs, waiting*

Yeah, I'm not in too much of a hurry. My friend who'll be buying a laser from me won't be buying one for a month at minimum.

Well, even at only a 70% efficiency (about what you'd expect for a rckstr driver on two lithium batteries), to output 200mA at 5.5 (erring on the side of caution; shouldn't need that high voltage or that much current), which is a 1.1W output, it only needs 1.57W input, at 2.4V, which is less...

They say 3-5V input, but does anyone know if one of these *can* run off of two Ni-MH cells at 1.2V each?

The O-Like says it takes 3-5V input, so it *seems* to not be able to run on two Ni-MH.

It doesn't need to be boost, I can use two 10440s. I just need a dropout voltage around 2V or less. Eudamonium (or however you spell his name) is working on some boost circuits, but his could be a while off, and I *might* be looking for something soon. And I hear the O-Like drivers get kind...

I meant in the same price range as the rckstr driver, like under $15.

The Groove says it's 15mm wide. Do you know if anyone makes a driver with 2V or less dropout, that will fit in these hosts?

I really want to take electrical engineering classes, and learn about this stuff, so that I could do it on my own someday. So, why do most people talk about LM317 drivers instead of LM1117 if the latter has a lower dropout voltage? Is it noticeably more expensive, is that why? I'd like to see...