ok never had the topogrow did have one of those vivosuns, so i can only speak to the vivosun
it got returned next day, the adjustable reflector was flimsy as ****,. the bar that goes from the ballast across and holds the reflector actually bent under its own weight from using the eyes installed to hold it up. The light itself was weak, i suspect it was the ballast.
Also tried one that was supposed to do both 315 and 500 it was worse
I heard you on your budget and wish you luck. I paid $270 each and got some i really like, dimmable Chinese made but to a US companys specs like gorilla tents, but bulb wasn’t included and that was before covid prices.
I have a few of the HTG supply CMH’s. Work fine, nice and sturdy. Reasonable prices (until you buy bulbs haha). $200 might not be enough if you want something better than the sketchy Amazon ones.
one thing is amazon is pretty good at understanding they sell a lot of crap, and will take the stuff back ,i live very rural though so its a hassle.
If @vernal likes htg it would be good enough for me to try them, and going a bit over budget and getting something of far greater value wins for me, and i am not at all rich.
@anon93244739 Me too I think it was like $250 out the door for their vertical 315 CMH unit it was a pretty square deal. Love it so far, definitely better than my horizontal unit in the veg tent. I also really prefer to go to an actual brick and mortar store for higher end equipment, it is very important to be able to switch out a unit same day if it takes a shit, the return and reship turnaround from Amazon can be over a week, though it is overall very convenient for stuff that doesn’t have moving parts or plug in.
@Who I get almost of my gear/nutrients/etc from there that I can’t get from hardware stores. Can’t say a single bad thing about any of it. Usually fair priced, decent quality.
Not really. I let flowering tops get sometimes closer than 12" away, no bleaching, no burns. A single 315 isn’t really powerful enough to get a real “hotspot” vertical or horizontal, but horizontal is a better spread in general, anyway.
So I’m going to be flowering a 6.75x4 area (I have a shelf thats 15" deep on one side of my 8x4tent, thats where I fruit my gourmet mushrooms when I have them going, other than that its storage). I have 2 ts1000 mars hydro led panels that I was going to hang on either side, with the cmh in the middle of them, which is why I want as much light dispersion as possible. I’d probably just get another led like the vipaspectra p2500, except I need the heat. I’m in an insulated, but not heated out building, which means my space heaters are running 24/7 and fight to hit 71°F. If I can get more heat as a by product, that means my space heaters run less. I have a light rail 3.0 and the robostick, so I can have the cmh move a bit too if I want. Or all 3 lights move if I get 2 trolleys.
thats the onnes i have, but @vernal is right as far as i know the vertical’s are more efficient, horizontal alot of the light is going up and is somewhat wasted.