Joined: Oct 6, Messages: 1, Likes Received: Quiet they run with almost no sound but they do still heat up not like a magnetic but still hot. Joined: Aug 9, Messages: 7, Likes Received: 2, Joined: Oct 2, Messages: 14, Likes Received: 10, Magnetic ballasts also tend to start buzzing louder after a while so theres that if concerned about sound..
Joined: Mar 24, Messages: Likes Received: This will fuck up your price range a little but if you get a digital ballast with a dimmer, the could be turned down if temps are getting out of control. Also, good ventilation is key. Buy a fan that's bigger than you need and buy a speed controller. Fans on speed controllers turned down can really reduce fan noise and help you dial in your temperature.
Then, you can run your light and your fan at full blast and see what the temps look like and hear how loud it is. Search forums. Log in. For a better experience, please enable JavaScript in your browser before proceeding. Heat questions for w HPS. Thread starter Larnek Start date Jun 15, Larnek Well-Known Member. Joined May 12, Messages Reaction score I'm looking around at upgrading my current CFL grow for flowering.
Hoping I will have plants of Nirvana Citral in a portable standalone closet, 3ft x 2ft x 5ft. I am of course trying to do this as cheap as possible, don't expect any payback other than personal for my efforts and don't have any extra money to spend really.
Growing soil with fox farms ocean and fox farms 3pack family of nutes. Would the separate ballast work or should I just drop to w or will I even need more cooling there.. Ambient temp stays around 72F currently. Any help appreciated. Will also take cooling ideas from anyone. I've never used an HPS lamp so I just don't have a clue how much heat will be produced. SkSMaN Member. Joined May 27, Messages 17 Reaction score 6. I would try the with external ballast. With the Ballast outside your box it will help run a bit cooler.
I think if you have good ventilation you should be OK for heat. Joined Jan 23, Messages Reaction score Even better, LEDs can give you an overall healthier plant. When we talk about HPS technologies in general, we gloss over important design elements like 1 the wattage of the fixture, 2 whether the lamp is single- or double-ended, and 3 whether the ballast is magnetic or electronic, etc.
For instance, an HPS fixture may achieve an efficiency of 1. But a different, watt HPS light with a magnetic ballast is a different story. The watt will only score an efficiency rating in the 1. LEDs are much the same. You may also find some hidden inefficiencies lurking in the ballasts of HID fixtures.
The lamp may perform well in a laboratory setting based on the wattage provided, but when the electrical loss of the ballast is factored in, the efficiency numbers begin to look very different. The reflector hood also decreases the stated efficiency of an HPS fixture.
In truth, efficiency goes beyond electrical consumption. Well-engineered lighting products will provide you with better harvest outcomes for several reasons. For instance, when you give your plants a balanced, fine-tuned spectrum, you can expect an increase in secondary metabolites and larger crops of denser flowers.
And electrical efficiency means lower heat, which creates a cascade of cost-reductions due to reduced HVAC use, fewer circulating fans, and easier pest management. LEDs have thrust the concept of the spectrum to the forefront of horticultural thought. You may also hear colors of light referred to as wavelengths because each color has its own frequency, as measured in nanometers nm.
Blue light has a short wavelength of about nm, while red light, at the opposite end of the spectrum, has wavelengths approaching nm. Savvy growers have always used spectrum control to craft better cannabis. The standard protocol has been to switch from a cool-colored metal-halide MH spectrum for vegetative growth to a warm-colored HPS spectrum for flowering. The MH spectrum contains plenty of blue light, which is critical for avoiding extension growth and increasing leafing; the HPS spectrum is red-dominant, making it perfect for flowering.
And some of those designs persist to this day. But, actually, the incomplete spectrums typically yield disappointing harvests, particularly at lower light intensities. Now, LED fixtures are engineered to contain all the spectra needed throughout the growing cycle, and spectrum manipulation is less extreme. Tunable fixtures enable growers to subtly change the colors and ratios of color in their spectrums throughout the growing day or season. Pound-for-pound — or rather kilowatt-for-kilowatt — they produce more light than HPS fixtures.
The diodes of an LED fixture are inherently superior at converting electricity into light. Along with better electrical efficiency comes better efficacy. A tailored LED spectrum provides plants with what they need for increased growth on a per-kilowatt basis. With an optimized spectrum and strong light intensity, plants yield more salable material, which fetches higher prices because of its enhanced quality.
This environmental benefit has prompted many governments to offer a rebate credit for switching to LEDs, so check with your local jurisdiction.
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