New Timber Grow Light Fixtures

Currently considering an upgrade of my flower room HID to these new FATTY arrays.

Right now I have 4x Gavita 750DE's each covering 5x6ft tables overlapping in a 10x12 room. These are hot lights and my 2ton AC can really chug in the summer so i'm interested in efficiency savings here without losing on incredible output of the Gavitas.

1. can I beat the Gavita umol output with these Fatty's? (Gavita approx 1500umol at 750w)

2. does the footprint overlap or would I need more than 4 units?

3. are they available in 240v?

4. is there a shortcut to calculating efficiency improvements of this upgrade? sorry its been a while since I had to think about LED v HID

If I can offset the outlay by forecasting a solid saving at the wall without diminishing the product then i'm ready to go!

ruwtz said:

Currently considering an upgrade of my flower room HID to these new FATTY arrays.

Right now I have 4x Gavita 750DE's each covering 5x6ft tables overlapping in a 10x12 room. These are hot lights and my 2ton AC can really chug in the summer so i'm interested in efficiency savings here without losing on incredible output of the Gavitas.

1. can I beat the Gavita umol output with these Fatty's? (Gavita approx 1500umol at 750w)

2. does the footprint overlap or would I need more than 4 units?

3. are they available in 240v?

4. is there a shortcut to calculating efficiency improvements of this upgrade? sorry its been a while since I had to think about LED v HID

If I can offset the outlay by forecasting a solid saving at the wall without diminishing the product then i'm ready to go!

Click to expand...

Hello @ruwtz,

Thanks for your post - happy to help with your questions:

1. Yes, the Fatty will output more PAR wattage than the Gavita - between 1800-2000 µmol roughly. The draw at the wall for either the Cree or Vero29 version is about 950 watts @ the wall. Please also note, the spread of the light should be more even with the Fatty series delivering more PAR wattage to the corners, due to the design of the light and the COB placement as opposed to a single bulb setup with a reflector, like the DE Gavita.

2. Each Fatty array is designed to cover a 5'x5' area with even PAR coverage. There will be a certain degree of overlap with the fixtures placed equidistant over a 10'x12' area, much as with the Gavitas. In a larger DE installation where the overlap of the coverage area is important to maintain even consistency of PAR output in traditional lamp style lights, especially in the outer parts of the intended coverage area -- with the design of our lights, usage of reflectors, and placement of the COBs equidistant from each other, that is mitigated to a degree.

3. All of our lights operate on 240V and we can supply you with the correct plug ends at no additional cost.

4. We recently had the Vero29 tested in an integrating sphere, and results show that it is right in the same ballpark as a DE HPS -- results of this test are posted in this thread here by @PSUAGRO. (post #122).

I am happy to answer any other questions you have -- feel free to email me, PM or post in this thread.

Have a good rest of the day.

Best Regards,
Dan

Hey i know this thread is a little older, lol sorry. But has anyone gone with the fatty 4000k package, and also added on 3000k bulbs? I plan to use this light full cycle and wonder if this is the better route then just 3500k for the whole cycle.

aiblueskyroots said:

Hey i know this thread is a little older, lol sorry. But has anyone gone with the fatty 4000k package, and also added on 3000k bulbs? I plan to use this light full cycle and wonder if this is the better route then just 3500k for the whole cycle.

Click to expand...

Hello @aiblueskyroots

Thanks for the post and for resurrecting this old thread, I appreciate it.

We do have some growers that have done a mix of 4000K and 3000K, although straight 3500K is more popular by far for full cycle growing. Many growers on RIU have experimented with color temp - most notable recent one I recall is @The Dawg who ran a combo 4000k/1750k smaller prototype version of the Fatty.

I hope this helps.

Regards,
Dan