8.4V to a 9V or 36V emitter would require a Boost driver. Doable, I have no idea what their set up is I just know the MG-G2 does indeed show capability of coming close to the advertised 5000 lumens, certainly not at 20W though.

I mod virtually every light, $800, $400 or $12, so I only see the potential for what I might be able to do with it not what it is in current form. Some 600 builds behind me gives me that perspective I guess. I wouldn’t buy this light for a number of reasons, but I love the MT-G2 and have quite a few, so I know what the emitter can do and what it looks like doing it. Throw, not likely, the surface is way too large with it’s array of 84 small dies….