Which kind of drivers do CNI 589nm use?

Hello, does anybody know if the 589nm laseres which CNI produces (those which Dragonlasers calls "Spartan") use linear or switch mode laser drivers?
I am asking because I'd like to modify one.
Having a 589nm with visible beam must be awesome but sometimes I want to make it eye safe. For this case I wanted to build a little switch mode driver in thes size of an 16340 battery and use a 16340 battery to drive the laser.
The switch mode driver will output a lower voltage so the laser does not operate at full power.
If they use linear drivers it should be easy to do such a modification. If they use a switch mode driver I would have to look up how they behave.

Pretty much any portable laser with an IR pump is going to use a LDO driver (linear). I would not recommend altering the drive current. Because of the nature of DPSS and the unstable environment of a handheld device, the output is not linearly proportional to the input current. In some cases, lowering the current by 10% will lower the output power by 90% while making it flicker. Output attenuation might be a better method.

Of course, if you use proper safety precautions, all lasers are eye-safe.

Thanks Cyparagon. So you mean I should dim it via PWM? That would be another way to go. I don't want to decrease the amount of output by a specific value. Actually I wasn't sure if I should order the 5mW or 50mW model.
Attenuating the output might be a solution but then the laser still comsumes the full current and gets warm too. I guess this wont be as easy as expected.