Nov 25, 2008 #3 HPS is HID. Metal Halide (MH) Vs. HPS Grow Light Bulbs, There’s a lot of confusion among growers when it comes to the different kinds of grow lights that they have and HPS vs MH Grow lights is something that always confuses a lot of beginners. While this can be quite a challenge, you can also use it to your benefit as you can control all these artificially created factors. Disclosure: As an Amazon Associate I earn from qualifying purchases. Save my name, email, and website in this browser for the next time I comment. This is why we have decided to come out with this article where we shall explain to you the functioning of both these, This process helps the plants generate various sugars and enzymes and break them down which helps power them through various stages of their growth. Metal halide grow lights are some of the more popular ones out there, and for good reason. 3. In order to balance things out, growers usually add HPS grow lights into their garden as supplement light. You should start them off along with the blue lights once the plant begins to enter the pre-flowering stage and buds begin to emerge. The two best HID lights for indoor gardening are high pressure sodium (HPS) and metal halide (MH). HID lighting systems consists of three main components, a ballast used to power the HID bulb, a reflector or hood to maximize the bulbs efficiency (by directing light over your plant surface), and a bulb. Sunlight is also responsible to trigger the opening and closing of the stomata of the plants that helps them ‘breathe’. Metal halide lights tend to be considered great full spectrum grow lights, and thy are great for the vegetative state, as they usually produce really lush and thick vegetation which is great for getting weed plants ready for the flowering stage. LED lights come in various form factors and of late, a number of innovations over the standard LED grow lights have come forward. CMH grow lights, just like all other grow lights, come with their own advantages and disadvantages. Let’s take a closer look both types of grow lights and what they bring to the equation. The HID lights that are most frequently used in growing plants indoors and in greenhouses are metal halides and high-pressure sodium (HPS). Generally speaking, both of these types of light, MH and HPS, are good options to go with, but for the most part, due to a couple of different reasons, HPS are the better option for flowering. You have entered an incorrect email address! Try and get a grow light that can last you for the longest possible time. A 250 watt high pressure sodium lamp can last from 12,000 to 24,000 hours. High-Intensity Discharge grow lights (commonly known as HID lights), as the name suggests, provide your plants with a large amount of quite bright lights. Furthermore, LED lights do not carry any chemicals inside them and are safe to use. Depending on the manufacturer to manufacture and from bulb to bulb, HID lights generally last you somewhere between 10,000 to 18,000 hours on an average. You might want to add-on reflectors or other similar items to ensure that the bulb covers as much area as possible. Coverage Area: 3′ x 3′ (0.9m x 0.9m) up to 3.5′ x 3.5′ (1m x 1m) How Far From Plants? There are pros and cons to both options, so let’s look at the differences between the two so that you can decide which will be best for you and your grow setup. 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. How to Choose the Best Seeds for Growing Marijuana? 400W MH/HPS . One defining characteristic of metal halide grow lights is that they give off more white and blue light when compared to HPS lights. HPS lights tend to have a much longer lifespan overall, and stay much brighter for longer, when compared to MH lights. Moreover, they are also much cheaper to run, and more versatile too. Glad to see you made the switch over to a few 315w CMH grow light kits!Now, by replacing your fluorescent lights with ceramic metal halide lights you've actually gone down in wattage significantly, to the tune of around 2000w's. However, when it comes to functioning, they work on a similar principle. Definitions High pressure sodium bulb. Blue regulates internodal distance (the … 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. Simply put, HPS grow lights tend to produce larger plant yields and higher quality results as well. The cost of the bulb and the warranty you get on it are quite important. These grow lights emit reddish lights which are more beneficial during the flowering phase of the marijuana plant’s growth cycle. Understanding Metal Halides (MH) Grow Lights: Understanding High-Pressure Sodium Grow Lights: Difference Between Metal Halide (MH) vs HPS Grow Light Bulbs. When an electric current is passed through both of these components iodize – xenon first and then the mixture and produce a reddish light which is beneficial for flowering plants. As mentioned above, MH lights are more suited for plants during the vegetative stage while the reddish HPS grow lights are better suited for the flowering/blooming stage of the plant’s life cycle. 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. However, when it comes to metal halide vs HPS for flowering, which is best? Sunlight is also responsible to trigger the opening and closing of the stomata of the plants that helps them ‘breathe’. The fact that HPS grow lights come on average with between 25% and 40% more lumens per the same watts, it tends to make for a better flowering grow light. 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. This grow light too requires a ballast so that the flow of current can be controlled. Understanding the Heat Dissipation System. Compare this with the 10,000-hour life expectancy for high-pressure sodium (HPS) and traditional metal halide (MP) bulbs and it's easy to see why CMH lights are well worth the investment. These bulbs are not only very fragile but also toxic due to the chemicals present inside them. 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. What are the Benefits of Hemp Oil? Each type of light has strengths and weaknesses. As a general rule of thumb, HID grow lights like Metal Halide (MH) and High Pressure Sodium (HPS) are most suitable for relatively larger grows where there is at least 5 feet (1.5 meters) of height in the grow space, though it’s recommended to use a taller space for the best results.This is because MH/HPS lights have to be kept fairly far from the plants. metal halide and high pressure sodium lights are both HID high intensity lights metal halide is for veg/grow high pressure sodium is for bud/bloom hope that helps . This light is closer to what sunlight looks during mid-day. The comparison above between High Pressure Sodium grow lights vs LED grow lights clearly indicates that the LED grow lights have a significant advantage when compared to HPS lights. MH grow lights (metal halide) are suited best for vegetative growth and HPS grow lights are superior for flowering. Well, the answer to this question varies from grower to grower based on their comfort, but the objective truth is – yes. Some of these grow lights can be used by growers across all phases of the plant’s growth cycle while some of them are phase-specific. The amount of area that the bulb of your choice covers is also very important. The biggest being that of energy efficiency as the lights really consume very little electricity – and in the long-run pay off for themselves. However, there are a number of differences between the two as well. 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. 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. Going through this buyer’s guide will help you prepare a checklist for when you go out in the markets to purchase the light of your choice: Growers generally buy both the bulbs together. However, you need to look for this feature in the type when choosing the most suitable light. Let us take a closer look at all these different kinds of indoor lighting options –. Metal halides have very low output in the red part of the spectrum, which is one of the dominant requirements of fruiting and flowering crops. CTRL + SPACE for auto-complete. Here’s What to Do. Disclosure: As an Amazon Associate I earn from qualifying purchases. Let us take a detailed look at how this grow lamp functions and when exactly are you supposed to use these lights: High-Pressure Sodium grow lights, just like Metal Halides, carry some Noble gases inside them. more infoIf you have ever grown weed before, you will probably be familiar with the issue of male vs female weed plants. Like all HID lights, Metal Halides require a ballast to control the flow of current. 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. Metal Halide grow lights as well as High-Pressure Sodium lights are both important for growers when it comes to growing marijuana as well as other plants. We have put them together under this section so that they might solve some of your doubts and queries as well. There are a large number of options available to growers who are looking forward to buying a grow light. These lights also range from 250-1,000-watts. These grow lights usually have a phosphor coating present in the bulb along with mercury vapor and when an electric current is passed through these bulbs, the grow light would emit short-wave ultraviolet light and the property of fluorescence would be achieved with the help of the phosphor coating which helps the lamps to glow properly. HID Lights are especially known for their arc tubes, which basically generates light though the excitement of chemicals within the arc tube itself. 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. Amazon, however, is perhaps the best portal for growers to purchase HPS grow lights and MH grow lights as you get the largest collection with the lowest prices and the fastest delivery there! more infoSo, you have heard that autoflowering weed plants take much less time to grow than photoperiod plants. A CMH uses a ceramic arc tube similar to those used in HPS grow lights instead of the quartz used in traditional metal halide grow lights. Coming straight to our main topic at hand, let us now understand what Metal Halides are. These lights require a ballast to operate because the ballast controls the flow of electricity and ensure that not too much current flows in that might lead to bursting the bulb. These lights usually offer a full-spectrum lighting experience, which means you can use the same unit during both the phases of your plant’s growth cycle and you don’t have to change the light every now and then. Flowering can be manually triggered in non-autoflowering plants by reducing the timings of the light from 12-14 hours to about 10-12 hours. Blue light is easily absorbed by chloroplasts in the cells and helps the plants generate more chlorophyll as well. HPS grow lights are to be used during the flowering phase of the marijuana plant’s life cycle. The watt per lumen ratio in HID lights is generally higher when compared to LED grow lights. All of this put together makes them a more superior kind of a lighting solution in comparison. The 10 Best Organic Potting Soils in 2021, The 10 Best Nutrients for Growing Weed in 2020, The 10 Best Soil for Indoor Growing in 2020, The 15 Best Cannabis Strains to Grow Outdoors, Should I Dim my Ballast? November 18, 2020. In this section we take a closer look at how these grow lights function and when is the right time for a grower to make use of them: Inside a Metal Halide lamp you would normally find Noble gases such as argon or xenon, mercury vapor. Plants need both MH and HPS lights to grow to their full potential. Besides this, sunlight helps the plants enter into the flowering stage from the pre-flowering stage when the lighting hours are reduced. The Benefits and Side Effects of Cannabis…. The lights use ceramic arc tubes very similar to the tubes in HPS grow lights. Frequently Asked Questions About MH Grow Lights and HPS Grow Lights: 1. When these lights get ionized, they produce a certain kind of light – Argon is usually the first one to get ionized followed by the halides. Yes, plants also have male... Disclosure: As an Amazon Associate I earn from qualifying purchases. First off, the color and the spectrum at which they operate are very different. ... There’s a lot of confusion among growers when it comes to the different kinds of grow lights that they have and HPS vs MH Grow lights is something that always confuses a lot of beginners. Learn how your comment data is processed. How Much Do Growers Make Selling to Dispensaries. These lights can help you provide an all-round growth to your plants. Similar to how MH lights have halides along with the primary gas, here you would find a mixture of sodium vapor and mercury which adds to the reddish tint of the light. LED lights are better than HID grow lights because of a number of reasons. How To Clone A Weed Plant (The Right Way), 13 Most Potent Marijuana Strains: Uppercut Picks, Best Microscope For Viewing Trichomes: Top 7. A Complete Guide for Beginners, The Ultimate Guide to Growing Marijuana Indoors, flowering stage from the pre-flowering stage, flowering stage of the plant’s life cycle, What Are The Different Kinds of Grow Lights. Metal Halides usually last a little longer when compared to HPS grow lights. Presently, if you opt to grow indoors, sufficient lighting is essential to stimulate the process of photosynthesis.Typical options can be split into four major categories: fluorescent grow lights (CFLs), metal halide (MH), high-pressure sodium (HPS), and light-emitting diode (LED). We hope that we have helped you understand these grow lights in a more comprehensive manner. To understand why indoor growers need grow lights, you first need to understand why growers need lighting in the first place. Simply put, the higher the lumen output, the more light intensity the pot plants are getting, and this then usually leads to higher yields, denser buds, and a higher THC content too. MH vs HPS. Both of these lights have a large number of similarities and differences but when they come together they function really well with each other. This means that many growers with HID light setups have separate veg and flowering lights or at least multiple bulbs, which adds … There’s a lot of confusion among growers when it comes to the different kinds of grow lights that they have and HPS vs MH Grow lights is something that always confuses a lot of beginners. While there’s no such thing as “heat dissipation” in these HID lights, you need to know if your bulbs heat up – and if so, how much. These are a type of High-Intensity Discharge (HID) grow lights, which offer bright lighting that helps indoor plants grow. HPS lights are known for their red and orange wavelength that is meant to increase the overall size of buds and speed up the transition from the vegetative phase to the flowering stage. It is based on how much light the plant gets in different stages that the overall growth and development of the plant depends. Fluorescent grow lights are low-energy and low-pressure lights compared to HPS/MH lights. Most would agree that HPS grow lights are better than MH lights in more or less every way imaginable. Till then…. Metal halide lights tend to be considered great full spectrum grow lights, and thy are great for the vegetative state, as they usually produce really lush and thick vegetation which is great for getting weed plants ready for the flowering stage. You must also check for the lifespan that the manufacturer promises. THE STRUGGLES OF CURRENT LIGHTING SOLUTIONS. Since the light that comes out of the two grow lamps is different in colour, the function of the light is also quite different – Metal Halides are useful during the vegetative phase, while HPS lights are more useful during the flowering stage of the marijuana plant’s life cycle. Can You Use Normal Light Bulbs as Grow Lights? The intensity of these lights can be increased once the flowering is triggered. Make sure you know the exact amount of power that these bulbs will consume from the wall socket before you buy them. Now, both metal halide and HPS grow lights are types of HID or high intensity discharge lights, which means that they do have a whole lot of power. Besides all of this, LED lights can last for a much longer period of time – sometimes as many as 100,000 hours or even more! They don’t have it all, though. Metal Halide grow lights are meant to be used when the plant you are growing is in the early stages of growth. CFL lights vs. MH/HPS grow lights The most likely alternative to MH/HPS (metal halide/high pressure sodium) grow lights is a CFL light. These lights also operate at cooler temperatures and need reflectors and ballasts – an elaborate setup to function. The HPS grow lights are usually associated with having a lower outpout of white and blue light, but a higher output of red light, at least comparatively speaking, although the newest ones put out a heck of a lot of light across the full spectrum. Besides this, we shall also be talking about grow lights and the need for using them in general so that you get a broader understanding of the topic. Here, we take a quick look at all the things that are different about these two grow lights. Some growers will have a vegging room with an MH grow light, and a separate flowering room with an HPS grow light, which reduces the hassle of constantly changing out grow lights. November 18, 2020. Well, both these lights have specific characteristics that differentiate one from the other. HPS is the bulb, High Pressure Sodium is an HID bulb and so is Metal Halide. Metal Halide Grow Lights: The Ultimate Guide. That means that both will use ballasts, capacitors, ignitors and/or power supplies to correctly operate. Ceramic Metal Halide grow lights are basically a variation of MH grow lights with a little of HPS added into the mixture. J. JuicyBuds Well-Known Member. The primary types used in horticulture include metal halide (MH), and high pressure sodium (HPS). HPS Grow Lights. HLG Quantum Board LED Grow Light Review (2020), Understanding the Difference Between Cannabis and Hemp, What is Cannabis Oil? Over time, the function of the sunlight changes – in the vegetative phase of growth, light helps plants develop leaves and sustain the leaves with the help of the process of ‘photosynthesis’ where sunlight is converted into energy. Write CSS OR LESS and hit save. There are two variants of this grow light – warm white and cool white for the flowering and vegetative phases respectively. 420 Arena – Complete Guide to Grow Weed at Home. This process helps the plants generate various sugars and enzymes and break them down which helps power them through various stages of their growth. They all function on diodes as the basic emitter of light. Buyer’s Guide: How To Choose The Best HID Grow Lights For Your Plants? As a young seedling, it needs a lot of light – sometimes as much as 20 to 22 hours of lighting. One of the biggest problem with HPS and MH grow lights is the fact that they are not as strong or durable when compared to other forms of grow lights. What is also interesting is that although metal halide lights are known for having high outputs of blue light, comparatively speaking, they actually do not create a discernible increase in vegetative growth. More on these in a moment. Something that is cool about metal halide bulbs is that they can often be customized and changed. Lastly, Metal Halide grow lights usually tend to last for a longer period of time when compared to HPS grow lights. High-Pressure Sodium (HPS) lamps are a type of gas-discharge light that, as the name suggests, operate at a very high internal pressure.They consist of a narrow arc tube within a bulb. Metal Halide (MH) Vs. HPS Grow Light Bulbs. Here are the answers to some of the most common and frequently asked questions that we get from our readers about HPS and MH grow lights. Spectrum comparison. However, because you've gone down so much, you'll want to make sure that the amount of light you have with your CMH's is enough to cover your canopy (we … High pressure sodium lights work by creating an electric arc through vaporized sodium metal, while additional materials and gases work to start the lamp and control the its color. Alright, so when it comes down to it, as you might have gathered by now, high pressure sodium lights are generally considered much better for flowering that metal halide grow lights, and here is why; Note: We have covered our favorite 1000 Watt bulbs for flowering over on a separate article here. Yes, you can use metal halide lights if you want, but generally speaking, high pressure sodium grow lights are way better for the flowering stage and produce much bigger yields. To plan a good indoor gardening system, it is important to learn about all the types of lighting available, and to research what lighting would work best for … Are LED Grow Lights Better than HID Grow Lights? This along with the wattage must be considered before you make a final purchase. Growing plants outdoors is simpler when compared to growing them indoors. The third and last type of grow lights, these are the latest type of grow lights in the markets which are preferred by most modern-day growers. The red light that comes from these lights helps the plants get bigger and better flowers and increase the overall yield as well. These are just a few functions that light plays but enough for anyone to understand how it is critical for any grower! Advanced ballasts allow interchanging Metal Halide bulbs and HPS bulbs. Both the MH and the HPS are widely used for outdoor lighting. Here’s a quick look at everything you need to know before you purchase an HID grow light – be it a Metal Halide or be it a High-Pressure Sodium grow light for your plants. These grow lights come in different shapes and sizes and function in different ways based on their system. Besides this, sunlight helps the plants enter into the, These grow lights are used by growers during the, How To Germinate Marijuana Seeds [Complete Guide]. . When it comes to the functioning of these two bulbs, the MH grow lights and HPS grow light bulbs function on pretty much the same principle of an electric arc being passed through some gases. In this article, we shall be taking a closer look at two kinds of lights – Metal Halides (MH) vs High-Pressure Sodium (HPS) Grow Lights. These bulbs produce red/orange light, and this results in heavy, dense flowers. High quality HPS grow lights are specially engineered to produce a heck of a lot of lumens and a lot of red light, both of which are beneficial for marijuana flowering. If there are any more questions or confusions, feel free to send us a mail or let us know in the comments below and we shall get back to you as soon as possible! High-Pressure Sodium (HPS) HPS is also a HID style grow light. . Both the Metal Halide and the High Power Sodium are High Intensity Discharge lamps or (HID). One of the most commonly asked questions which new weed growers have is whether metal halide or HPS grow lights are best, especially when it comes to flowering. G8LED grow light reduce electricity by 40-50%. These lights are also used during the later stages by some growers but at lower intensities along with red HPS lights. When you grow them outdoors, you are basically leaving them largely to the mercy of nature as the natural air, sunlight and soil play a major role here. At this early stage, the sunlight helps the plants grow taller and stronger. You must try to get a bulb which operates at as lesser temperatures as possible. Moreover, there are certain metal halide bulbs which give off more blue and white light, best for vegetation, and then there are others which give off more red light, best for flowering and producing high yields. Red lights that come from the HPS grow light help the plants develop bigger and better flowers and increase the overall yield per square foot. When you look at the light that comes from MH lamps, you would find it to be more ‘natural’ looking than other kinds of lights. It’s... Disclosure: As an Amazon Associate I earn from qualifying purchases. Both these lights are similar in how they operate but different in the ways the growers use them. LED grow lights consume the least power of all of these grow lights, tend to heat up the least, as well as offer the most lumen per watt ratio in terms of power consumption. However, in case you are looking for a specialized light, you need to know that the kind of light you buy depends upon the phase of growth that your plants are in. They usually come with large ballasts, often complete with cooling systems in order to ensure that they do not overheat. High pressure sodium lights produce a higher amount of photosynthetically active radiation (PAR) than MH lights, which all plants need to perform photosynthesis, which in turn leads to faster, better, and more efficient growth in all regards. HID grow lights can be purchased in practically any store that sells gardening supplies. During the vegetative phase, a marijuana plant requires bluer shades of lighting which help the plant become leafier and grow more foliage. First off, they are way more energy-efficient and provide brighter lighting at the same (or lesser) power consumption. HID is High Intensity Discharge. These lights are great for early-stage plants as they emit a cool blue shade of the visible spectrum which helps the plants grow in size and generate more leaves and develop more foliage in general. The wattage on the name is never really the amount of power that they draw from the socket. When you pass an electric arc through these gases, you are forcing them to ionize. Hence you must make sure that the ones you are buying are not cheap ones that make use of thin glass but ones which would last you for a long time.