Looks like the
TS600 has bridgelux diodes with 2.0 efficiency where's the vs2000 has samsung lm301d with 2.7 efficiency, samsung is everyone's preferred diode but bridgelux makes good diodes as well. I don't have experience with reflectors so I'm not sure of the light pattern of the
ts600, I would think reflector would help but how much compared to an extra 100 watts, idk.
Like I mentioned, I have 2 vs4000 which I assume are double a vs2000. I've almost have been using the lights for a year straight with no issues so even though the specs are not advertised correctly, it's been good so far with no issues. I use them in a 8x4 and have been growing 6 at a time and my last harvest was just shy of 11 ounces, almost 2 ounces per plant which I'm satisfied with.
Hopefully someone else who owns the actual lights you are looking at will come along, I'm kind of curious on the
ts600 (particularly the reflectors) so might look for some reviews myself.
How big is your space? The vs2000 is 23.5" x 11.8" and the
ts600 14.1" x 12.2".
Vivosun also has the Aerolight models that have a built in fan and some models adjustable wings on the sides, Aerolight come in 100w, 150w, and 200w. If you buy on
Vivosun and register with a new email, you get 10% off. I've never used the
vivosun aerolight and don't know much about them so do your research if you consider that model.