(1) I’m very familiar with Vivosun…my licensed facility is outfitted with Vivosun double bulb 630 CMH(315 x 2) lamps, 600 watt single ended, along with a bunch of their centrifugal fans…solid performing lights and fans!
(2) What I would do with them…run them side by side my Vivosun CMH lamps and see what the difference is between the two…(Of course I would document the entire grow here on Overgrow )
(3) What I want…well…if these do as well as I hope will do I will upgrade the lighting in the entire facility with Vivosun LED’s!!
Alaskagrown