which of these bulbs are better
Grolux 400w Dual Spectrum
Sunmaster 400w Son T Plus
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which of these bulbs are better
Grolux 400w Dual Spectrum
Sunmaster 400w Son T Plus
are they metal halide, high pressure sodium or what?
HPS m8
which is better for 12 hour flowering cycle ?
not really shure but anything HPS will be really good fur ur plants there. make shure ur keeping the heat to a minium about 70-80 degrees F.
Live :stoned: and grow those herbs nice and high
go with hps. using 600w hps plants love it.
we need to know what kelvin each light produces.
I'm using a 400w Grolux hps (58,000 lumens) and I'm really happy with the results. But mine is just a regular Grolux hps - I don't know what their dual spectrum bulb is.
PC :smokin:
the dual spectrums lumens is 58000 but it said that it has a blue spectrum as well i thought plants did better under an red orange spectrum in flowering ?
The blue spectrums are to help during the veg stage, it's added to the HPS red spectrum, no loss of lumens....Quote:
Originally Posted by Wheatie
it's all good for the plants...both are great bulbs....enjoy.
I tried looking up the duel spectrum bulb couldn't find it, could be due to different continets!
Lets try this, I need the manufacture name, if a majoir manufacture there is a model number on the box. (ex. 400/mh/eco)
This will help alot then I can tell you everything about the bulbs.
Mine is a Sylvania GroLux. There's not a lot of info on the box:Quote:
Originally Posted by Jerry Garcia 2007
GroLux 400W
HIGH PRESSURE SODIUM
Made in Belgium
Code 0020807
E40
bar code: 5 41 0288 208077
The bulb is advertised by Sylvania as being the only bulb designed specifically for growing. It is a full spectrum bulb. Dual spectrum doesn't really make much sense, I think Wheatie might have got terms confused because I'm pretty sure we are talking about the same bulb.
PC :smokin:
Thank you for that info.
I did find the bulb specs and both are 21k, meaning they will not work well for vegitating plants. So don't be fooled into thinking you can use these bulbs in place of a metal halide lamp.
What the heck are you talking about? What is 21k supposed to refer to?Quote:
Originally Posted by Jerry Garcia 2007
Wheatie never asked about vegging. The question was which bulb is better for flowering.
If you have some special insight about bulbs, great. But if you just want to post nonsense that has nothing to do with the question asked, please don't bother others (especially me) with silly questions that require time and effort to answer. I've got better things to do with my time than transcribe boxes for someone who then simply restates the obvious.
PC :pimp:
Quote:
Originally Posted by Jerry Garcia 2007
Not true....i use hps for veg. and flower...hps will do veg. and it will do it quite well
Pharmacam.
I am trying to keep my cool and not post something that will get me tossed out by your comment.
21k is 21000 kelvins this is the color of the light produced from the bulb which is in the red spectrum. The proffesion I do involves dealing with all different types of lighting and electrical designs and trouble shooting. As for wasting your time I spent a good hour or more looking thru catalogs and on line to find these bulbs in order to give accurate information.
When Wheaty said duel spectrum it made it sound like this bulb was designed for both stages of growth. I want to make sure that was not the case before I tell you and others not to buy this bulb thinking it can be used for both stages of growth and get the same results as using a MH bulb because you will not. These bulbs are designed with some added blue light to help with photosynthisis during flowering and are probably your best choice for the flowering cycle. As for which of the 2 is better I would go with the Sylvania Grolux due to brand name and reputation as a quality lighting provider.
Well, Jerry, blue light is 2,100 Kelvin - not 21k or 21,000k.
An explination of Kelvin Temperature and where our 5500K Life-Lite lamps measure on the Kelvin Temperature scale
While your intentions may have been good, your information, or at least the way you wrote it, was not accurate. ...and the only thing I have to go by is what you wrote, isn't it?
PeaCe :smokin:
ok I agree
21,000K would be wayyyyy blue. I used to be into growing coral, and I'd use metal halide bulbs in that spectrum for growing lots of stony colonies. They aren't even that great of bulbs IMO, I used them to flouresce corals without supplemental actinic lighting.
sorry everyone I ment to put 2100 kelvin I was in a hurry when I posted that.
... and I apologize for my remarks. No harm , no foul, just a misunderstanding.Quote:
Originally Posted by Jerry Garcia 2007
PC :smokin:
Apology accepted, no harm done, I should have proof read better before posting.
Using an $96 Hortilux with added blue 400HPS on one side, and a $129Hortilux Ultra ace Conversion bulb (off a 400HPS convertable ballast) I found the conversion bulb gave better results it terms of bud density and overall growth and consistency of canopy height.
Perhaps it would make a difference if you are using the one bulb for both veg and flower.
If I had to purchase again I would not have spent the extra $$ on the added blue to use for flower only.
I am using now this FS-Deluxe-600: 90.000 Lumen(lm)
193.500 Phyto-Lumen(Phyto-lm)
Gib-Lighting
I am proud to say that I use an HPS from start to finish. I use a 600w HPS for veg and flowering. Cuttings get some flo's for the rooting and then off to the HPS.You could add some white or blue light if you like,but the HPS seems to be doing GREAT things for the plants.:thumbsup:
Ga Grown!
I use the Philips 400w mastercolor hps retro-white ceramic metal halide. Only works in a 400 watt hps magnetic ballast. The full color spectrum of this bulb is unmatched in my opinion and I have had excellent results with it.
I use it from veg through flowering. Before switching to this bulb last year, I had been using the eye hortilux. you can get them for $50 - $60.
Has anyone else tried these bulbs?
Regards,
JT
yes...end of third week flowering...:thumbsup:...very nice.Quote:
Has anyone else tried these bulbs?