Time in Min until “too hot to hold” : 25sec
Time in Min until peak temp reached: 50sec
Can circuitry handle heat nonstop yes
Max start up lumen:3900
Test ending lumen:1600
Have you changed the thermal ramping setting? Try setting it up higher. I remember reading something from tk's reviews about how it throttles due to thermal. It's the temperature of the driver, not the light. Also it uses an algorithm, depending on how rapidly the temperature changes, it...
The factory version has dome on. Vinh dedomes them and picks the best tint emitters and uses those, so it's a process to get good ones. He also changes the board that the emitters are on, to rotate them to create a better shaped beam. This results in more throw, better tint, and a better beam...
Yeah I know he didn't change the driver, but he changed the emitters. I know the 219c version starts cutting back in 5-10 seconds. Was just curious if his handled heat any better using
His PDT emitters
You can get it in multiple configurations from MTN electronics or the site he listed above or straight from vinh. The 219c and xpg2 versions are 40, the xpl is 58.