I'm quite sure it will grow some fine cannabis.
I don't know whether the light itself has enough UVA in it to make a
substantial difference.
I do know that
this supplemental light will make a
substantial difference.
Waterproof 30 watt UVA LED BAR designed for 12 hr. cycle in a 4' x 4' or 5' x 5' space. Passive cooled, 24 inches in length with built in power supply. Bolt on installation for any HLG 550, HLG 600 Rspec®, HLG 650R, Scorpion® Rspec®, and Scorpion® Diablo.
horticulturelightinggroup.com
Autos, run it 12 hours mid cycle and photos running 12 hours with your other lights during flower.
While it may not increase Cannabinoids, it definitely increases the Terpine's!
It will increase the production of anthocyanin, which creates the purple or reddish hues.