I'm not familiar with that light, but based on the specs it is more than capable of causing foxtailing; however, based on your earlier response:
(Glad your eye is better, by the way
)... That is pretty fast and you likely need another week or two for them to fatten, most of the pistols to get dark and start to recede, and more amber on the buds themselves (and not just the top colas/sugar leaves) in order to get to your desired:
Regardless though, you appear to be getting close to what you want, so nice job