wtylerhansenI an not positive on this particular TOOL as it has the electronic tail switch. That being said, people where running a 10440 in their TOOL with a mechanical tail switch. The company I ordered mine in copper from said it was ok to run the 10440 even though the company doesn't officially disclose the capability. Much higher outputs were reported (obviously), but many people lost low setting. Low, med, and high were all bumped up. With long term use some lost the ability to run standard AAA, which is why I decided against it.