Chandra, Suman, Hemant Lata, Ikhlas Khan, and Mahmoud Elsohly. MH, or Metal Halide, and HPS, or High Pressure Sodium, are two types of High Intensity Discharge lights that give a brighter effect, and also help to save energy. A proper LED grow light for a 4×4 foot grow space can cost between $400 and $900, while an HPS grow light will cost (sometimes significantly) less than $200. 10.1007/978-3-319-99211-2_14. Let’s take a look at hypothetical energy cost difference between an HPS and LED grow light for a 4×4 foot grow space. If you’re using 600 watts in a 4×4 foot space you’d be able to save 100 to 200 watts. Best Nutrients and Fertilizers for Cannabis, MARUO, Toru, et al. The light produced by HPS bulbs is … For parking lots, warehouse lighting, or security lights, 5000K is a much brighter and cleaner looking option for your corn cob LED light. give us a call or use the live chat button on our site. These corn cobs can replace a 50W metal halide up to a 1000W metal halide. Grow Tent Light Leakage – How Much Is Too Much? “Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions.” Physiology and Molecular Biology of Plants 14.4 (2009): 299-306. However, ceramic metal halide bulbs run a lot cooler than MH and HPS bulbs by about 8°F. Are LED grow lights worth the extra cost? We are testing the top rated LED fixture vs the top rated 1000W double-ended HPS fixtures at our Medical Cannabis grow in Northern California. Induction has, I think lost it's momentum.So a new LED system would save tons of electricity and take fewer fixtures to light the existing area. Those who use HPS lights most often use Metal Halide for vegetative growth as well since its light spectrum is better suited for vegging. HID grow lights fall under two category types: the Metal Halide (MH) and High-Pressure Sodium (HPS). Benefits of Metal Halide. Metal halide bulbs, sometimes shortened to just “MH” and high pressure sodium bulbs, sometimes shortened to simply “HPS”, are in a family called High Intensity Discharge bulbs, or “HID” for short. Metal halide lamps promote vegetative growth in plants because they emit a bluish white light ideal for vegetative growth. Color ranges for most brands like Keystone Lighting Technologies, Philips, Arva & Halco begin at 3000K and go up to 5000K. A power saving of 150 watts at the US average electricity cost of $0.13 per kilowatt hour means you’d save ~$10.50 per month in electricity if you bought the $470 LED grow light. This will reduce power usage and maintenance as you will be removing the power consumed by the ballast and the need to replace that ballast in the future. But there are still situations where an MH / HPS grow light is the better choice. LED vs HID Grow lights. Copyright 2021 by 420ExpertGuide.com. This is a quick take on MH vs. CMH lights. You can’t just use your new CMH bulb in your old MH ballast. Colorimetric parameters for hps l led grow lights hps vs led grow lights the spectrum how to find led equivalent wall packs hps vs led grow lights the spectrum Hid To Led Conversion Chart 14 TableHow To Find Led Equivalent Wall Packs Replacing HidsHow Many Lumens For A 400watt Metal Halide And What Is The… Read More » LED vs HID grow lights is a topic that has always been a constant debate around the world among growers. Over the past twenty years, grow lights have evolved. The bulbs generally last between 20,000 to 35,000 hours, where LEDs are said to last up to 50,000 hours. Light-Emitting Diodes for Horticulture: Materials, Processes, Devices and Applications. LED corn cob lights are one of the most efficient ways to replace  Even though the popularity of LED grow lights has overtaken HPS grow lights in modern gardens, there is still a significant cost difference. Let’s say you’re choosing between a 600 watt HPS and a 450 watt LED grow light for a 4×4 grow tent. We're Professionals! If you’re unable to control your climate well, it may be worthwhile to get an LED grow light. You can't eat them, but you can light them! Of course you should also take into consideration what I’ve laid out above. We stock thousands of LED's, light bulbs and ballasts from names like Philips, Acuity, Universal Lighting, Fulham, CREE, Halco and Eiko. I understand not everyone is concerned with up front cost. Eichhorn Bilodeau, Samuel et al. Most of the corn cob LED lights on the market are auto voltage sensing. HPS grow lights still have their uses, even if they aren’t as popular anymore. So if the operating voltage of your circuit is 120V, 208V, 220-240V or 277V, any of the "120V-277V" rated lamps will work. An LED ran cooler than CMH's by at least 2°F, and overall 10°F lower temperature from a higher-powered LED. Direct wire or ballast bypass LED corn cob lights operate directly on line voltage. Modern LED grow lights have gotten much better at spreading light evenly across the canopy. HPS grow lights are known for high heat output. Re: 400W Metal Halide vs 400W HPS « Reply #1 on: July 26, 2014, 09:13:40 PM » Author: DetroitTwoStroke HPS lamps only work with HPS ballasts. Before we compare metal halides and LEDs, it is important to understand what makes them different. The primary visual difference between them is that metal halide light is white and the light emitted from a High Pressure Sodium bulb is amber orange. Best LED Grow Light For 4X4 Grow Tents – Pictures, Specs, and More, Bestva 2000W Full Spectrum LED Grow Light Overview, Everything You Need To Grow Cannabis Indoors (Complete List), 9 Methods to Lower Temperature in Your Grow Tent (2021). One look at the lights and you can tell that the Metal Halide (MH) grow lights function at the bluer end of the color spectrum while the High-Pressure Sodium (HPS) lights function towards the other end – and have a reddish light. Metal halides are compounds composed of a metal ion chemically bonded to a halide. Metal Halide vs. So there would be no energy savings there. Filament (halogen), discharge (metal halide and HID) and LED. In other words you can spend 16 x $900 for LED grow lights that cover 5×5 feet each, or you can spend 16 x $190 for 1000 watt HPS grow lights. The bulbs are fairly cheap and easy to replace, whereas LED grow lights need to be shipped to manufacturers for warranty repair on the rare occasion the LEDs go out early. The warmer 3000K light is a great way to simulate 3000K metal halide lamps like the Philips MHC100/U/M/3K or ALL high-pressure sodium lights. For a more detailed look, check out my in-depth article on ceramic metal halide lights. For example, a 450 watt LED grow light would be equal to a 600 watt MH / HPS grow light. metal halide, mercury vapor, and high-pressure sodium HID bulbs. For today's blog, we’re going to focus on the ballast bypass lamps and why you should  CMH vs. MH. As I mentioned earlier, you can light a 4×4 foot space with a 400 or 600 watt HPS grow light for well under $200. In the early days of LED grow lighting, there were marketers out there who espoused the positives of the technology and offered it at an appealing price point. But I still encounter a lot of budget growers who need the best bang for their buck. If you have a portable A/C or an otherwise well controlled climate, you should be able to manage the heat of HPS grow lights. The total cost of the LED system compared to … They can operate on a range between 120 and 277V. We have found over the years that most of our customers prefer to replace their metal halide lamps with Direct Wire (ballast bypass) versions. High pressure sodium bulbs are efficient electrical light sources that produce a wide spectrum of bright yellow light that is good for street lights and greenhouse use.. Metal halide bulb. He, Dongxian & Kozai, T. & Niu, Genhua & Xin, Zhang. I have only ever used LEDs and a UVb light up to this point and was looking to create another flowering tent and wanted to give bulbs a try but I can't decide between the blue metal halide and the super hps. Encased in a thick glass, metal halides operate when an electrical current passes through a combination of metal and halogen elements, generating gas that creates visible light. Corn cob lights come in a range of lumen outputs, replacement wattages start as low as 12 watts and go as high as 200 watts. This glows, producing light and a lot of heat. The electricity difference would theoretically be ~$25 extra per month for each HPS grow light, assuming $0.13 per kilowatt hour (average US cost) and 18 hour light days. They are less effective during the vegetative stage, however, which means purchasing separate blue-colored bulbs – usually metal halide. The 630 watt HLG 650R is supposed to be equivalent to a 1000 watt double ended HPS grow light. consider switching from metal halide to LED corn cob lights. The HPS will put out probably more weight but ceramic metal halide going to give you a healthier and more oil rich product. We have an array of modern light systems that can grow plants, like Ceramic Metal Halides (CMH) and Light Emitting Diode (LED) systems. It would take 29 months for the cost savings of the LED grow light to save you the extra $300 you spent on the LED light. How High To Hang Grow Lights Above Plants – Based On Science! It’s important to make sure you’re comparing true wattage of the LED grow light to the wattage of the MH / HPS. Another advantage of LEDs is their low heat signature. Here we can examine why a metal halide or high pressure sodium light bulb is best choice for you. High pressure sodium grow lights produce up to 40% more lumens per watt than metal halide lights, and this then leads to much higher yields when marijuana is flowering. They are a wonderful replacement for the technologies of the past, such as metal halide and mercury vapor. But remember, LED lights have a longer lifespan than HPS lights. “White LED Lighting for Plants.” bioRxiv (2017). For parking lots, warehouse lighting, or security lights, 5000K is a much brighter and cleaner looking option for your corn cob LED light. First of all, Ceramic Metal Halide and Metal Halide bulbs are not the same thing. HPS vs LED Grow Lights – Key Differences: Energy Consumption. Lighting Comparison: LED vs Metal Halide Lights Most people would really like to see the comparison if possible. Some modern LED grow lights also include infrared and ultraviolet diodes, each which have specific benefits for growing cannabis. Feel free to check out my guide to keeping your grow tent cool. I’m not saying you can’t grow good cannabis with HPS grow lights, but science says certain light wavelengths produced by LEDs is beneficial – such as ultraviolet, infrared, and the other colors included in white spectrum grow lights. “Effects of Supplemental Lighting with Light-Emitting Diodes (LEDs) on Tomato Yield and Quality of Single-Truss Tomato Plants Grown at High Planting Density.”. “An Update On Plant Photobiology And Implications For Cannabis Production”. If you’re growing more than one cannabis plant on a budget, an HPS grow light is probably the way to go in terms of bang for your buck. Spread and Intensity of Light The chemical bond between a metal and a halogen can be either a covalent bond or ionic bond. A number of growers tried these cheap LED grow lights, only come away discouraged by … Metal Halide bulbs produce light by passing electrical currents through a mixture of mercury and metal halide gas to make a white light. Lumens Efficiency. Corn Cob LED lights are a truly great invention. Are DIY Quantum Board Grow Light Kits Worth It? For the sake of simplicity we can pretend you’re growing autoflowers which require 18 hours of light from seed to harvest. Let's talk! I hope this discussion helps you along in your decision. Even if they share a lot of the same technology they have fundamental differences in the way they’re constructed and how they operate. color choices are fantastic with LED corn cobs. Traditional halogen lamps use a filament which heats up as the electricity passes through. HID grow lights require the use of two different bulbs. A common 450 watt LED grow light for 4×4 costs $470. Most like the idea of removing the transformer (ballast) and running line voltage directly to the medium household base (E26) or mogul base (EX39/E39) socket. Trying to do so would be very dangerous. If you’re stuck wondering which type of grow light to use, I’ll explain what I usually recommend. I estimate LED grow lights are equal to HID grow lights that consume 33% to 50% more power. Here’s an example: A 20 x 20 foot grow area would require 16 grow lights that cover 5×5 feet each. 50W Metal Halide Replacement for MH50/U/MED, MVR50/U/MED, MXR50/U/MED, 70W Metal Halide Replacement for MH70/U/MED, MH70W/U/PS, MVR70/U/MED, MXR70/U/MED/O MH50/U/M/4K, MP50/U/MED, 100W Metal Halide Replacement for MH100/U/MED, MVR100/U/MED, MHC100/U/M/4K, MH100W/U/PS, MP100/U/MED, MXR100/U/MED/O, 150W Metal Halide Replacement for MH150/U/MED, MVR150/U/MED, MHC150/U/M/4K, MH150W/U/PS, MP150/U/MED, MXR150/U/MED, 175W Metal Halide Replacement for medium and mogul base MH175/U/MED, MVR175/U/MED, MH175W/U/MED, MP175/U/MED, MVR175/U, MH175/U, M175/U, H39JA-175DX, 250W Metal Halide Replacement MH250/U, MVR250/U, M250/U, M250/U/BT28, H37KC-250DX, 400W Metal Halide Replacement MH400/U, MH400/BU, MP400/BU, MVR400/U, H33GL-400DX, 1000W Metal Halide Replacement MH1000/U, MVR1000/U, M1000/U. The other is a high pressure sodium bulb that creates a red spectrum for the flowering phase. The open wing style reflector is best for light spread, but not everyone uses it. One look at the lights and you can tell that the Metal Halide (MH) grow lights function at the bluer end of the color spectrum while the High-Pressure Sodium (HPS) lights function towards the other end – and have a reddish light. We Can Help You Replace Metal Halide lamps with LED Corn Cobs. After 27 months of 18 hour light days the extra $25 per month you’d spend on electricity for each HPS light would equal the $11,000 you would have spent up front on LED grow lights. The effects of red, blue, and white light-emitting diodes on the growth, development, and edible quality of hydroponically grown lettuce (Lactuca sativa L. var. Ceramic Metal Halide. For example, a 450 watt LED grow light would be equal to a 600 watt MH / HPS grow light. We stock light fixtures, incandescent bulbs, CFL's, halogen light bulbs and the latest technology in LED's and Smart Lighting Technologies. Sharakshane, Anton. Different lights will produce more or less heat.) Both the MH and the HPS are widely used for outdoor lighting. Foot Candles capitata). LED corn cob lamps come in 2 basic types - Direct Wire (ballast bypass) or Ballast Driven (plug-and-play). In this article, we will discuss deeply on LED vs HID grow lights. Metal halides work similarly to incandescent light bulbs. The initial higher investment in the LED light pays off very quickly. One of the biggest advantages to growing with LEDs as compared to growing with High-Intensity Discharge (HID) bulbs like High-Pressure Sodium (HPS) and Metal Halide (MH) bulbs is that LEDs consume a fraction of the electricity of an HPS or MH bulb. I’d argue they’re definitely better at uniform light spread than MH / HPS grow lights. 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