New gavita 750 DE fixture and lamps

[MidniteGardener]

With hood/bulb/ballast I was quoted around $500 a piece..

How much shipped? If you can send a link I'm interested in getting a couple.

Those AC/DE reflectors look tempting

According to a test by Growers house, the Sunlight Supply reflector blows away the oem Gavita fixture. I think you could easily replace a single ended 1kw with the 750 without much loss in yield. The double ended bulb size is standard. Only thing different is the length of the arc tube inside so the 6/750 bulbs slap right in.

http://growershouse.com/blog/best-indoor-grow-light-test/

And Greenleaf - the glass is removable on the AC/DE. You're right it's not necessary with the design of this hood. I saw another vid where Monster Gardens tested light levels with and without glass. The PAR reading was about 4% difference. Plus you get another 5-10% because there are no cooling holes.

 

[GR33NL3AF]

How much shipped? If you can send a link I'm interested in getting a couple.



According to a test by Growers house, the Sunlight Supply reflector blows away the oem Gavita fixture. I think you could easily replace a single ended 1kw with the 750 without much loss in yield. The double ended bulb size is standard. Only thing different is the length of the arc tube inside so the 6/750 bulbs slap right in.

http://growershouse.com/blog/best-indoor-grow-light-test/

And Greenleaf - the glass is removable on the AC/DE. You're right it's not necessary with the design of this hood. I saw another vid where Monster Gardens tested light levels with and without glass. The PAR reading was about 4% difference. Plus you get another 5-10% because there are no cooling holes.

This makes the AC/DE a no brainer, even if you don't plan on air cooling them. I'm trying to get MG to do their own PAR test, because if that test is factual the E-paps and gavitas are already a thing of the past...

I'll get some prices and PM you..

 

[sixstring]

Thats really cool now you can use a standard digi ballast to run de bulbs.i wonder how they compare par wise to the 400v Phillips?

 

[MidniteGardener]

Thats really cool now you can use a standard digi ballast to run de bulbs.i wonder how they compare par wise to the 400v Phillips?

That's the thing I'm skeptical about. In the video he says the Ushio 1000w DE isn't 400v, but in the specs on Ushio's site it says otherwise. I'd be afraid it isn't running the bulb properly with a normal ballast. The Gavita pro ballasts are made to convert 240v to 400v so they run the bulb at peak efficiency. It seems they have two version though, so maybe one of them is indeed made to run on regular ballasts.

 

[GR33NL3AF]

That's the thing I'm skeptical about. In the video he says the Ushio 1000w DE isn't 400v, but in the specs on Ushio's site it says otherwise. I'd be afraid it isn't running the bulb properly with a normal ballast. The Gavita pro ballasts are made to convert 240v to 400v so they run the bulb at peak efficiency. It seems they have two version though, so maybe one of them is indeed made to run on regular ballasts.

IF this is the case and I can use my existing digital ballast, I'll be stoked! Way less of an investment. I'll ask them later today..

 

[MidniteGardener]

I think it also has to do with the frequency of the ballast. The specs on the bulbs say operating frequency is at 100,000 hertz, which is what Gavita pro ballasts run at. Normal digital ballasts run at around 60,000 hertz. So they might ignite the bulb and run it, but they won't be running at optimal levels. This would also need to be verified with a Par meter though.

 

[Capulator]

I think cap is using the gavita 1000w remote ballasts dialed down to 600 and driving a standard 600 watt bare bulb vert,you cannot do that with a double ended bulb(yet). These new lamps are double ended 750s just like the 1000 de gavita makes.The problem i have found with the gavita DEs is you need alot of ceiling height,about 3' for the 1000s which means plants have to stay around 5' and thats from the floor so depending on your style it can be an issue but these new 750s may offer some releif from that height restriction and offer better crosslighting while using approximately the same amps,the new lights can also use the new EL lighting controller.

I am using the gavita remote ballast tuned to 660w for the 600w 400v philips GP bulbs.

They are better than 1ks my very room is crushing it so hard it is not even funny. I think I am well within reach of 18 potatoes from 9 600w bulbs.

I also have horizontal rooms with the gavta 600's SE (single ended, normal e39 socket) fixtures. These are the gavita hoods with the single ended philips bulb and ballast connected (not dimmable). They are awesome lights and are way better than any 1k bulb IMHO.

If you buy the 1k fixture it is a DE bulb (double ended) and you can dim it anywhere from 600, 660, 750, 85, 1000, and 1150.. Not sure why you would need anything new from them when they already make this unit.


8'ceilings and you do not need more than 600w. You can buy the 1ks if you plan on getting 10+ ft. ceilings later on so you don't have to buy new equipment if you ever move.

 

[Capulator]

Also I am not sure the reflector makes much of a difference unless you are concerned with spread. It is the same philips bulb in all of them.

 

[MidniteGardener]

I am using the gavita remote ballast tuned to 660w for the 600w 400v philips GP bulbs.

Is that a double ended bulb? If so I'm curious where you found them. Edit: Nevermind I didn't realize you meant it's a vertical room, and obviously the double ended bulbs won't do vert.

For a small scale hobby grower like myself, the reflector is a bigger deal because I don't have an open room with high ceilings. I really admire the grows I've seen with a dozen e-paps or gavitas in open rooms, but I'm trying to get the most spread with the least heat and electricity.

 

[Capulator]

Is that a double ended bulb? If so I'm curious where you found them. Edit: Nevermind I didn't realize you meant it's a vertical room, and obviously the double ended bulbs won't do vert.

For a small scale hobby grower like myself, the reflector is a bigger deal because I don't have an open room with high ceilings. I really admire the grows I've seen with a dozen e-paps or gavitas in open rooms, but I'm trying to get the most spread with the least heat and electricity.

epap will give you he most spread hands down.

 

[MidniteGardener]

epap will give you he most spread hands down.

No doubt in an open room with multiple rows, but inside a tent too much light is thrown to the walls.. I guess I should have used different wording when talking about spread. One of the best ways I've seen it put was from Whazzup, and he said "You light a room, not a table."

I also have a problem with heat, which is why I need to go air cooled. If I could set up a proper room I would definitely go with e-paps or gavitas and just cool the room with a mini split. But even without air cooling the numbers the AC/DE are throwing down seem like they would put the gavita reflector to shame.

 

[Capulator]

I have never really grown in a tent, so I can't speak from experience there. I just watched the video and that is a really nice reflector design. I am not sure how much heat will be pulled out just cooling the aluminum though...

 

[MidniteGardener]

I have never really grown in a tent, so I can't speak from experience there. I just watched the video and that is a really nice reflector design. I am not sure how much heat will be pulled out just cooling the aluminum though...

Yeah, not sure about that either but it's better than nothing. I imagine there's more heat buildup if you keep the glass on.

I've got a couple questions for you Cap. I saw in another thread you said the Gavita 600w fixtures could still burn your plants if they aren't high enough, and the 400v 600w GP bulbs might beat a traditional 1000w. Would I stand to gain any by using the Gavita remote ballasts with 400v 600s inside my blockbusters, or is it more the hood design that causes the Gavita to be so intense? I currently run 2 blockbuster hoods with 600w lumateks inside a 5x9x7 grow tent. Occasionally I use the 1000w setting in flower.

Also, do you use the Pro 1000w ballast and just keep it dialed down to 600/660 for the single ended bulbs? I'm thinking if I did this it would be an easy upgrade path once they release the 750w DE bulbs, unless you think the 7' ceiling is way too low for either one.

 

[GR33NL3AF]

That's the thing I'm skeptical about. In the video he says the Ushio 1000w DE isn't 400v, but in the specs on Ushio's site it says otherwise. I'd be afraid it isn't running the bulb properly with a normal ballast. The Gavita pro ballasts are made to convert 240v to 400v so they run the bulb at peak efficiency. It seems they have two version though, so maybe one of them is indeed made to run on regular ballasts.

The ushio DE bulb can be ran with a standard digital ballast and Monster Garden's in coming out with their own DE bulb from Genesis.

AC/DE price: $280

 

[Seed Buyer]

Sun Light has a new hood coming out called the "Boss". Its like the AC/DE but is a non air cooled hood. Should be available for sale around June. PAR readings were much higher with the Boss than the Gavita hood.

 

[deacon1503]

Any reviews on the DE bulb in an Ajustawing?

 

[GR33NL3AF]

Sun Light has a new hood coming out called the "Boss". Its like the AC/DE but is a non air cooled hood. Should be available for sale around June. PAR readings were much higher with the Boss than the Gavita hood.

If this is true, I'm going to swoop them up, they would have to be cheaper.

Any reviews on the DE bulb in an Ajustawing?

Just the PAR readings taken from this test: http://growershouse.com/blog/best-indoor-grow-light-test/

Monster Garden's is getting ready to do a huge test with a very expensive meter (this is all I was told), get more info soon.

 

[ohgee kush]

Can't wait for the monster garden's test to see the results

 

[ohgee kush]

Heres the Boss reflector, the outter dimensions look smaller, im digging these already.

 

[GR33NL3AF]

Badass^