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Old 01-31-2019, 05:38 AM #4941
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670W~ for their 630 DE.
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Old 01-31-2019, 05:54 AM #4942
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Quote:
Originally Posted by gh0stm0de View Post
670W~ for their 630 DE.

315w EBM Chinese ballast.
Tested with Cheap Power Meter from EBay.

RESULTS in Australia.
Setting - - - - Watts Measured at 240v AC wall Socket.
145W - - - - - 180W.
215W - - - - - 256W.
315W - - - - - 365W.

35-50W additional energy using 315W Master GreenPower Elite Agro 930.

-------------------------

Are you saying the 630w EBM dual tube Chinese ballast uses 670W in total?

Actually, could be about right.
Thanks



For 2x 315W EBM ballast
365W x2 = 730W
60W Saving using the dual version.


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Old 01-31-2019, 06:25 AM #4943
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I cannot speak regarding the dual 315 offhand as I do not sell 315s since you already have many solid choices, but yes that is correct, looking at about 670 on the 630 setting for their DE ballast.
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Old 01-31-2019, 06:41 AM #4944
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Quote:
Originally Posted by gh0stm0de View Post
I cannot speak regarding the dual 315 offhand as I do not sell 315s since you already have many solid choices, but yes that is correct, looking at about 670 on the 630 setting for their DE ballast.
I have never used the 630W EBM Ballast. (Says Double ended?)

Regarding how to use them:
Can you just wire 2x 315W Master GreenPower Elite Agro 930 tubes.


The Dimming for EBM 630W ballast starts at 300W.
I take it, 150W per tube with this Double Ballast?
145-150W per tube is right on the money for me.

I would be interested to know:.
The Wattage at wall for EBM 630W ballast Dimmed to 300W running
2x 315W Master GreenPower Elite Agro 930 tubes.


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Old 02-07-2019, 02:08 AM #4945
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EBM says 350W~ at the wall for 2x 315 dimmed to 300
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Old 02-07-2019, 07:09 AM #4946
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Quote:
Originally Posted by gh0stm0de View Post
EBM says 350W~ at the wall for 2x 315 dimmed to 300

Dimming seems to be the go, 350W @ the wall.
2x "315W Master GreenPower Elite Agro 930 Tubes" @150w each.


Putting the 2 Tube parrrellel for :|:|: would give better light distribution than :-:-:



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Old 03-07-2019, 11:19 AM #4947
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Figured after all the threats of going with CMH, I should come back and post a mid-run update. Plants are about 18 days in.

No complaints with the Grower's Choice 315w so far. Plants are growing happy and healthy.







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Old 03-07-2019, 12:12 PM #4948
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dank... how high do u keep the hood over the tops??
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Old 03-07-2019, 12:32 PM #4949
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Well, I don't really have a set standard at this point. I'm still learning how to use them right, myself. First round with them and all seed plants. They've been everything from 22" to where they are now at about 11" and that's just because the plants are still stretching. It seems around 14" though is about right.

I've not seen any negative impact on the plants at these distances, although, the 22" caused way too much stretch between internodes. At least in my setup anything beyond 18" would be to far.

Light penetration changes as the lights get moved higher as well, so as the lights go up, the canopy gets a bit thinned more. I really only see about 14-16" max depth of true canopy where I expect to have A+ grade flowers.

I see a tendency for plants to toss nut sacks in low light so keeping the underside of the canopy cleaned and stripped seems to be extra important with these, compared to a 1k, which I'm used to.

I'm not expecting 1k numbers, that'd be ridiculous. However, I'm seeing what I'd consider far superior performance to a 400w HPS system - even at this point in the first round of flower. With 2 x 315 I fully expect I'll be able to hit 1.5# with them easily enough. With the right strain, perhaps 2 is not actually unreasonable. I didn't think I'd make that statement, but I can see the potential if done right.

This is the other side of the room, under the other light. It's at 17" from the closest top, currently. I checked.





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Old 03-10-2019, 07:24 PM #4950
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