new to these hows my set up sound ? in the
The Grow Room forums; hi all new to this tired off being ripped off for shit weed so thought i'd grow my own, got ...
new to these hows my set up sound ?
hi all new to this tired off being ripped off for shit weed so thought i'd grow my own, got a few q.s if anyone can help. im setting up with an envirolight 200watt light and using 2 autopots im only plannig on growing 2-3 plants is this enuff lite ? also bought some northern lights seeds how will i know what sex untill they are flowering ? also what nutrients should i be using for vegetave ? cheers all great forum !
This is courtesy of concept420.com
marijuana Grow Lighting Guide
Indoors, 2000 lumens per sq. ft. is about as low as you want to go indoors. If you get under this mark, plant growth will certainly not go as fast as possible, and internode/stem length will increase. Also, light distance to plants will be much more critical. Daily adjustments to the lamps will be necessary, meaning you get no vacations. 2500 lumens psf should be a good target, and 3000 is optimal if your going to inject or enrich CO2 levels (more on that later). High Intensity Discharge lamps are the best solution for most indoor growers.
HID lamps come in 3 basic flavors: High Pressure Sodium (HPS), Metal Halide (MH) and Mercury Vapor. Metal Halide is an improved spectrum, higher intensity Mercury Vapor design. HPS is a yellowish sort of light, maybe a bit pink or orange. Same as some street lamps. HPS lamps can be used to grow a crop from start to finish. Tests show that the HPS crop will mature 1 week later than a similar crop under MH, but it will be a bigger yield, so it's better to wait the extra week.
The easiest HID to buy, and least expensive initially are the fluorescent and mercury vapor lamps. MV will put out about 8000 lumens per 175 watts, and 150 watts of HPS puts out about 15k lumens, so HPS is almost twice as efficient. But the color spectrum from MV lamp output is not as good. HPS is high in reds, which works well for flowering, while the Metal Halide is rich in blues, needed for the best vegetative growth. Unfortunately, MV lamps provide the worst spectrum for plant growth, but are very inexpensive to purchase. They are not recommended, unless you find them free, and even then, the electricity/efficiency issues outweigh the initial costs saved. 400 watt HPS will output around 45k lumens.
For every 500 watts of continuous use, you use about $20 a month in electricity, so it is evident that a lamp taking half the power to output the same lumens (or twice the lumens at the same power level) will pay for itself in a year or so, and from then on, continuous savings will be reaped. This is a simple initial cost vs. operating costs calculation, and does not take into account the faster growth and increased yield the HPS lamp will give you, due to more light being available. If this is factored into the calculation the HPS lamp will pay for itself with the first crop, when compared to MV or fluorescent lamps, since it is easily twice as efficient and grows flowers faster and bigger.
Lamp Type :: Watts
:: Lumens/bulb Total :: Efficiency
Fluorescent Bulb :: 40 :: 3000 ::30k lumens
Mercury Vapor :: 175 :: 8000 :: 20k lumens
Metal Halide :: 400 :: 36000 :: 36k lumens
High P. Sodium :: 400 :: 45000 :: 45k lumens
Notice the Mercury Vapor lamps are less efficient than the fluorescent (FL), and can not be positioned as close to the plants, so the plants will not be able to use as much of the MV light. The light distribution is not as good either. MV lamps simply are not suitable for indoor gardening.
Use fluorescent, MH, or HPS lamps only. Halogen arc lamps generate too much heat and not very much light for the wattage they use, and are also not recommenced, even though the light spectrum is suitable for decent growth. There is a new type of HPS lamp called Son Agro, and it is available in a 250, 1000, and 400 watt range. The 400 is actually 430 watts; they have added 30 watts of blue to this bulb. It is a very bright lamp (53k lumens) and is made for greenhouse use. These bulbs can be purchased to replace normal HPS bulbs, so they are an option if you already own a HPS lamp. The beauty of this bulb is that you do not give up most of the advantages of MH lamps, such as minimal internode spacing and early maturation, like most HPS users do, and you have all advantages of a HPS lamp.One bulb does it all.
Internodal length of plants grown with the Son Agro are the shortest ever seen with any type of lamp. Plants grown under this lamp are incredibly bushy, compact and grow very fast. Son Agro bulbs however, do not last as long as normal HPS bulbs. There is something like a 25% difference in bulb life. Metal Halide (MH) is another option, and is available in both a 36k and 40k lumen bulbs for the 400 watt size. The Super Bulb (40k) is about $10-15 more, and provides an extra 4000 lumens. I think the Super Bulb may last longer; if so, that makes it the way to go. Halide light is more blue and better than straight HPS for vegetative growth, but is much less efficient than HPS.
It is possible to purchase conversion bulbs for a MH lamp that convert it to HPS, but the cost of the conversion bulb is more expensive than the color corrected Son Agro bulb, so I would recommend just buying the Son Agro HPS. Even though it costs more initially, you get more for your energy dollar later, and it's much easier to hang than 10 fluorescent tubes. If you have a MH 36k lumen lamp burning at 400 watts and a 53k lumen HPS burning at 430 watts, which is better efficiency wise? Which will provide a better yield? Obviously, the Son Agro HPS, but of course, the initial cost is higher. Actually, the ballast will add about 10% to these wattage numbers. The Son Agro bulb will prove much better than the MH for any purpose.
The MH bulb does not last as long, but is cheaper. Compare $36 for a 400 watt MH bulb vs. $40 for the HPS bulb. Add $15 for the Son Agro HPS. The HPS bulb life is twice as long. 10k hours vs. 21k hours. The Son Agro is 16k hours or so. Still, longer bulb life and more light add up to more for your energy dollar long term. Horizontal mounting of any HID is a good idea, as this will boost by 30% the amount of light that actually reaches the plants. Most HID's sold for indoor garden use these days are of this horizontal mounting arrangement.
Last edited by pauliojr; 03-19-2007 at 03:18 PM.
well you can grow with an enviro light, which is just a fat ass CFL, but i dough that this will deliver you much better weed then the shit you bought...
i tried growing with floros years back and wasn't to pleased with what i got for the afford i put into it. i actually went outdoors after this and was hack of a lot more pleased with that what i did grow there with hardly any work put in compared to my first attempted to growing. so from my experiences, you will do better with some small HPS sys then with those CFLs, even with a 200W version
keep the thumb green and the gun oiled
Green is right. So you can either grow with the fat ass cfl or get an HID. This might help explain the difference.
HID (High Intensity Discharge) Lamps are:
Fluorescent lamps are:
- Efficient. They put out more light, with less energy usage, than any other type of illumination available to indoor growers.
- Bright. HID's produce more light than other types of indoor horticultural lighting.
- Expensive. HID's cost more than flourescents. They range in price from $50-$600 dollars.
- Hot. HID's produce considerably more heat than standard fluorescents.
- Inexpensive. Shoplight fixtures can be purchased for as little as $7. Compact fluorescent bulbs only cost a couple of dollars a piece.
- Locally Available. Most discount stores and home improvement stores carry inexpensive, fluorescent fixtures and bulbs.
- Fine for vegetative growth. Fluorescent bulbs put out plenty of light for plants growing vegetatively, including mothers, seedlings and clones. Some growers prefer fluorescents for vegetative growth because of the slower pace of growth and better root development.
- Fluorescents need to be in close proximity to achieve their rated output, which means their canopy penetration is more limited than HID's.
- Comparatively inefficient. 10 forty watt fluorescent bulbs use the same amount of energy as a 400 watt HID, but produce far less light. Since they use the same amount of energy but produce less light, the remaining must be given off as heat. Contrary to how it may first appear, fluoros actually run hotter than the equivalent wattage of HID-- they just disperse the heat over a wider area.
commercial stuff? shitty bank ? dont get it ? arent hps gonna rinse my elctricity ? also anyone know about the sex thing or do i have to wait untill flowering ?
ok so its eems the gneral opinion is to ditch the envirolight ? guess i fell for clever advertising i think it takes a hps bulb so back to the sex of the seeds anyone know how i tell bought a pack of seeds do i find out which r females when they flower ? or should they all be female ?
did you buy feminized seeds or just normal nirvana seeds? also, i seem to recall that a 200w eco-light (pretty much the same as an envirolite) will produce 25,000 lumens, 125/watt.
this isnt the 45,000 lumens a 400w hps would give, but its half the wattage. granted, the buds wont be as dense, but its perfect for veg and a cheaper but highly sufficient alternative to hid.
check out shivas inspirational grow with the 200w envirolite: My Very First Grow
^^25,000lum from a 125W CFL, okay that would be 200lum/W, those envos make at max just 100lum/W... they can't do magic!
keep the thumb green and the gun oiled
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