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Scotts nor HGC has any experience with horticultural lighting. It would not be in their best interest to take control, we are a very successful company. As for the LED developments: Of course Gavita develops LED fixtures. We first however made fixtures for aquatics, as the time and place for...

guys, please... first of all Scotts is not Monsanto. Neither does Monsanto own Scotts. HGC is a subsidiary of Scotts. HGC took a 75% interest in Gavita. Scotts merely has the marketing rights for roundup in the gardening market. There is no involvement of Monsanto whatsoever. To say Monsanto...

Lighting... Can't live with it, can't live without it right? :bigjoint:

No offense, but we are horticultural lighting fixture manufacturers and the makers of these fixtures. I congratulate you on your success using these lamps, clearly they produce more light and that translates in good results. I just warned about the implications that such a construction could...

it doesn't change he efficiency nor the operation of the ballast but it does void your warranty. The plug and cable provided are good for 15 amp, while the fixture uses less than 5 so they are more than capable of doing the job.

If you like the hortilux 1000W lamps, you're gonna love the Gavita fixtures with the Philips double ended lamp. Ppf is 2100 umol s-1 compared to less than 1800 umol s-1 for the Hortilux, which is by the way the best single ended US lamp we tested in the Ulbricht sphere. That's 15% more light...

sorry? 9 ft? 90 cm comes closer for the 1000W, and they will never give you a square footprint.

Answered through distributor. They were used internal reflector lamps, but with the original Russian arc tube. Gavita has these lamps built too at the same factory, but with a revised framewire and a custom arc tube from a different manufacturer to be more suitable for horticulture. So this is...

I'm not talking about a connected ballast, this fixture was made from a HortiStar reflector for a remote ballast. Up to the connection box the fixture is wired with silicon wiring (in EU) and with special UL approved heat resistant wire (US). The connection box is normally outside the reflector...

Nice. Pictures say a thousand words :) Anyways, it's always good to verify things that are supposedly so because someone posted it on a anonymous forum on the internet. That goes for my posts too.

:o3 x1000W in 2x2? 6000 umol on just 4 square meters as a starter? Isn't that a bit overkill? Who on earth recommended you to hang 3 x 1000W lamps on that space? 2 is more than enough. I can imagine that this doesn't work. Use two lamps, on that space keep at least 60 distance to your crop and...

If you read what Gavita publishes about their products you will see that Gavita makes no claims based on speculations, but based on trials and science. Please show me one quote where Gavita makes unreasonable claims about yield increase. There is one thing I promise you: If you are an...

No, I can see you don't get it and what you are saying is just not true. The Gavita pro-line uses 400V electronic lamps made by philips, and for the 600W system even the GreenVision electronics by philips. They are called GreenPower Plus EL lamps. Philips has a lot of greenpower lamps, they are...

food for thought indeed... if you put the 1000DE in a raptor and start chilling it you will lose 15-20% of light. These lamps are not suitable for cooling. And even if you don't chill: there is no reflective material behind the the lamp if I am not mistaken? Given that the lamp is closest to...

Of course they exist, they are just a bit less efficient than hps ;) When you have a climate limitation, I think an air cooled reflector is good thinking. Less light per fixture, yes, but also a lot less cooling capacity needed, and temperatures are already high so you don't need a lot of extra...

the sun doesn't only emit UV a few moments a day. To get results of that method (half an hour of UV a day) intensities should be extremely high. I can't imagine you get 10% more THC out of that.

Allow me to comment: I would not say that main-stream LED is more efficient than HPS. How much surface does one LED cover when it produces 1000 umol and is that uniform? It is really hard to measure the PPF by doing a PPFD measurement. You could try to do an integration of many points on the...

I don't get this. How can one define the output of a lamp as power per surface? That is irradiance, not radiant flux. Now let's look at a 35W 10% UVB lamp and let's even assume that it is 100% efficient (it is not of course ;)) A quick calc (correct me if I'm wrong) Power lamp 35 W % UVB...

Yes, I read that you experienced that. Was t an unfiltered lamp, I mean no glass shield? I've grown plants almost into the lamp without many problems.

Nope. It's not sulfur plasma, indeed it is based on Metal Halides, not sulfur. Sulfur plasma lamps usually have large spinning balloons and are available mostly in very high output (usually >700W), which makes it very hard to distribute if you don't have much ceiling height. They are bulky...