Gavita-Pro 1000w 400v (new generation hps)

[rives]

The pro 600 is equipped with Philips electronics. Standard that 240V system is not dimmable. In horticulture we hardly ever dim. If we do we use Dali systems (external and through computer systems). You shouldn't need to dim a system anyway

I was told that the ballast electronics are set up for dimming, but for whatever reason they decided not to bring the controls out. If they were dimmable, I would buy two of them right now - I have a rectangular space that is a bit too small for (2) 600's side-by-side, but could use a bit more than 400's. I also like to buy equipment with the highest degree of flexibility possible because I am forever tinkering with my setup.

Henry Ford's philosophy that "You can have any color you want, as long as it's black" costs you customers in this day & age!

 

[whazzup]

Some systems require optional modules or interfaces, some just need different software, some are not equiped at al. The 600W 240 is standard not suitable for dimming. In any case if it were it would not be by a switch on the housing. As said, in greenhouses we use Dali systems. Not to control the climate btw but to reduce energy costs by right sizing the amount of light. Dimming to adjust to a smaller space I would not recommend as you lose efficiency. I would rather boost a 400 than dim a 600 when it comes to efficiency, color and optimal use of space.

 

[Treebeard]

Ok, any concern with running Gavita ballasts in a flip-flop?

 

[OneTokeOver]

Wazzup, does the spectrum change when you adjust the wattage on the 1000DE?

 

[whazzup]

Ok, any concern with running Gavita ballasts in a flip-flop?

we do not endorse or support the use of flip/flops. I consider it a bad technical solution. Ballasts should be switched by the mains, not at the output. A ballasts is perfectly capable of switching on and off 1600 times (5 years). Most flip/flops are also equipped with incorrect contactors. Remember they get 5 kV ignition pulses and a great flame when you interrupt the signal.

Warranty is voided when used with a flip/flop as it is not intended use.

 

[whazzup]

Wazzup, does the spectrum change when you adjust the wattage on the 1000DE?

yes it does, with any lamp. In general you lose reds when you dim HPS.

 

[OneTokeOver]

Thank you.

 

[bredren forster]

Yod..i mean Wazzup, what HPS/ LEP combination would you recommend for a 1.2 x 1.8M room with 1.85M of headroom? and hows Rotterdam I lived their for a bit.

 

[rives]

Wazzup, I have been to the Gavita site and was unable to find a polar plot of the light distribution for this fixture. As I recall, there was a statement that the uniformity exceeds 90%, but didn't see the source plot. Could you provide a link to this information? Thanks.

 

[whazzup]

@ Bredren: 1.2x1.8 is not a problem, 1.85 height is. So it depends on your style of growing. 2x Pro 600W is more than enough, but that will take up much of your headroom. For veg 2 plasma lamps is enough. On a small space it is always a bit more difficult to combine.

@rives: attached is the diagram for the HR96 reflector. As you see it brings the light really wide. That is important when overlapping lamps, but also to compensate for wall losses.

The uniformity depends on the distance from the reflector and the overlap you create. In a small room or a tent it is really difficult to get something uniform as the walls influence the uniformity. Optimizing the reflectivity of your walls is important. Anything that ends up on the ceiling does not reach your plants .

The TripleStar reflector is adjustable. I attached that ISO too.

 

[rives]

Thanks for posting those, but I had seen them. I was looking for a plot of the light distribution from a single fixture to help determine it's effective footprint and uniformity over the area covered.

 

[whazzup]

ah, I'll post some measurements and distances coming week. But remember that also depends on your configuration. You always try to create overlap between the lamps to create uniformity. And again, much of the uniformity depends on your walls in a rl situation.

 

[bredren forster]

Thanks Wazzup, I was going to get 2 x 1000 pro remotes with 2 shades to suit the DE lamp and also 2 of the SE shades so I could swap the shades if required and use 2 x 400v SE lamps (600's and 750's) and use the DE 1000's when weather permits. My grow never goes above 3' including pots from the floor so I still have 3' spare. I would of got the 600 pro if it had the dimmer feature, I would have it now. Cheers Whazza m8.

 

[whazzup]

bredren: just remember you can not run a normal 750W SE 400V lamp on a high frequency electronic ballast, that could cause all sorts of problems. 2x600 should actually really be enough for that space, it's just over 2 square meters. I would personally go for 2x600 and save myself a lot of hassle. It is much more difficult to get a high yield on a small space with very high intensity light. 2x 1000W is really way too much to ever be efficient. I guarantee that with 2x600W you can get a kilo (or when you are familiar with your strain 1.2 kilo), with 2x1000 that would maybe be 1.5 kilo, but with a lot more trouble because of the extreme high intensity. I would not recommend that amount of light without cooling and CO2 and a lot of experience.

 

[bredren forster]

Thanks Wazzup, I wanted the 1000 set up incase of future expansion. I thought any 400v lamp would run on the 1000 pro if the e40 shade is used, I could use a SE 600w set at 600 could I not and I thought the 750w 400v would be the same, I will have to research further methinks.

 

[bredren forster]

The lamp I was looking at is the GE lucalox PSL 400v 750w lamp its on the gavita site, I assumed any 400v lamp on their site would fit the pro ballast, if not why have them on the site? A list of which lamps work in the pro 1000 and 600 would be nice to see if possible. As I said above I assumed if the fitting for the lamp is ok ie. DE for DE lamps and E40 for SE and the lamp is rated at 400v it would work. Any light (sorry) you could shed on this would be great, cheers Bredren.

 

[whazzup]

hehe here is a bit of light: It is possible to use the 600W EL lamp on the 600 and 660W settings. The European GE Lucalox 750W PSL is also suitable for the 750W setting, I am just not sure if that lamp is available on the US market in a E39 version. Also the 750W PSL is not as efficient as the 600W and 1000W EL lamps. I would recommend to use the 600W and boost it to 660, or the 1000W lamp and dim it to 825.

 

[whazzup]

so, what has this all got to do with the Gavita Pro 1000 DE? Maybe you can open a new thread with your question, many answers I think you can already find here on the forum.

I know it's a drag but the first thing you should get acquainted with on a forum is the search function. All this knowledge is here, it is just a matter of finding it. You are combining many questions in one post and none of them have any relevance for the topic.

I am sure a moderator will be kind enough to move your post to a new topic. I will answer it there.

 

[steamer]

OK, not a great start here for me! (Although I'm surprised that links to official Philips spec sheets are classed as spam and deleted)

So, apologies for not starting a new topic here. I'll do so now. Although can I just assure Whazzup that I have no problem with the "drag" of researching things. Have spent many hours doing so on here and elsewhere. Have emailed Gavita and Philips (both ignored), have asked many respected growers but just hear too many varying opinions to conclude anything. Anyway, I shouldn't have butted in your thread and would be thankful for your help elsewhere.

 

[rives]

Thanks for posting those, but I had seen them. I was looking for a plot of the light distribution from a single fixture to help determine it's effective footprint and uniformity over the area covered.

*bump*