The main difference between metal halide and high pressure sodium is that metal halide lamps have a high efficiency and color rendition of light whereas high pressure sodium lamps have a poor color rendering. Madhusha is a BSc (Hons) graduate in the field of Biological Sciences and is currently pursuing for her Masters in Industrial and Environmental Chemistry. The downside of MH bulbs for growing is their relative inefficiency compared to High Pressure Sodium (HPS) bulbs. Figure 1: Sodium Chloride Crystal Structure. For example, palladium chloride is a metal halide which exists as a polymeric structure. And a lot of time, we have a product in mind that works based on past experience. Metal halides are inorganic compounds composed of a metal ion and a halide ion. Metal halide lamps produce light in the white and blue spectrums, while high pressure sodium lamps produce light in the yellow, orange and red spectrums. The Positives & Negatives of Energy-Saving Light Bulbs. “Alpha-palladium(II)-chloride-xtal-3D-balls” By CCoil (talk) – Own work (CC BY 3.0) via Commons Wikimedia 3. © Copyright 2020 Hearst Communications, Inc. Some transition metal halides also dissolve in water. This means they have the power to generate high yields and a large bud mass in the flowering stage. A high pressure sodium bulb produces light that is reddish-yellow, while metal halide bulbs produce a much more balanced white light that has more of the visual spectrum. Metal halide lamps produce more of a glare compared to high pressure sodium lamps. Both types of HID lamps work well for encouraging plant growth, due to their high lumen outputs. Results 1 to 4 of 4 Thread: Differences Between Metal Halide and High Pressure Sodium. Score: LED 5, Metal Halide 0 LED floodlights vs High Pressure Sodium floodlights Efficiency High Pressure Sodium floodlights come closer to rivalling LED floodlights than halogen and metal halide. Since both types of lamp are HID, they are designed to produce generous amounts of light, or lumens. The main difference between metal halide and high pressure sodium is that metal halide lamps have a high efficiency and color rendition of light whereas high pressure sodium lamps have a poor color rendering. HID wall packs have higher initial Lumen ratings than equivalent LED fixtures and feature an internal aluminum reflector to better direct the light outward. 2.3 Quartz Metal Halide (QMH) Metal Halide lamps have an efficacy of 80-115 lumens per watt and have a life between 10,000-20,000 hours. High pressure sodium lamps are an improved version of low pressure sodium lamps. High pressure sodium lamps help promote flowering in plants. Figure 4: High Pressure Sodium Lamps . in my experience sodium lights have always had more of an orange tint. Halides are anions of halogens. Metal halides are used in metal halide lamps. Home » Science » Chemistry » Inorganic Chemistry » Difference Between Metal Halide and High Pressure Sodium. its the same low pressure soduims came out back in the 40 with street lights and hps came out in the 60 for street lights is light tuning up a honda. “High Pressure Sodium Lamps” By Swisstack – Own work (Public Domain) via Commons Wikimedia. 1. It exists in a crystal structure as shown in the below diagram. 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. The chemical bond between a metal and a halogen can be either a covalent bond or ionic bond. have you thought about using LED lights for spreader lights, there are some pretty great options out there now a days. What is the Best Type of HID Light to Grow Stocky Tomato Plants? These metal halides improve the efficiency and color rendition of the light. Metal Halide: Metal halide lamps are composed of mercury along with some metal halides including metal bromides and metal iodides. High Pressure Sodium vs LED - What’s The Difference Between High Pressure Sodium and LED Lights. 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. HPS light costs differ based on the particular fixtures, but are cheap compared to LEDs. These bulbs, which are mostly used in outdoor settings, offer different amounts of light output and operate in different color spectrums. LED Wall Pack Fixtures. This structure has infinite chains of palladium chloride units. HID vs. For example, sodium chloride is an ionic metal halide compound. High pressure sodium lamps contain more components such as mercury which is absent in low pressure sodium lamps. The Difficulty in Choosing the Right Grow Light. They are heralded because of the quality of light they produce. High Pressure Sodium Grow Lights vs Metal Halide Grow Lights The article below will explain the differences between High Pressure sodium Grow Lights and Metal Halide Grow Lights. A metal halide lamp is an electrical lamp. 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. Hi if you had plants under 18 hours of light with a Metal Halide bulb and switch to an High Pressure Sodium bulb,but keep it at 18 hours on how will this affect the … The bulbs in this family produce a large amount of lumens, which is why they’re used for public spaces, like stadiums. Metal halide vs. high-pressure sodium: An age-old question for cannabis growers. Thinking about a little indoor gardening this winter? Unlike low pressure sodium lamp, the high pressure sodium lamp has an acceptable color. Both high pressure sodium and metal halide lamps are considered HID (high intensity discharge). 2. Sodium Lamps: High-pressure sodium sources were developed primarily for their energy efficiency. An ignitor is used when high pressure is necessary to strike an arc through certain materials and get the temperature up … Both Metal Halide and High Pressure Sodium bulbs are part of the HID family of bulbs. Only high-pressure sodium and pulse-start metal halide fixtures have ignitors. While the technology behind indoor plant lighting has evolved rapidly, one thing has stayed fairly constant: Most growers still prefer to use high-intensity discharge lights in their grow rooms. Halogens can accept electrons to their outermost electron shell. Later, the high pressure sodium lamp was developed due to the disadvantages of the low pressure sodium lamp. Specialty varieties of i know we used metal halide in the engine rooms of my ship because they where actualy WHITE light, and man are those suckers bright. Thread Tools. High Pressure Sodium: High pressure sodium lamps have a poor color rendering. It produces light by electrical breakdown of a gaseous mixture of vaporized mercury and metal halides. Metal halide and high pressure sodium lamps are typically omni-directional meaning the light is emitted in all directions: top, sides, and bottom. Metals are the elements in the s block and d block. HPS bulbs are 30%+ more efficient than MH bulbs but they only have around 3% blue in the spectrum. What is the difference Between Metal Halide and High Pressure Sodium – Comparison of Key Differences, Key Terms: Covalent Compound, High Pressure Sodium Lamp, Ionic Compound, Low Pressure Sodium Lamp, Metal Halide, Metal Halide Lamp, Palladium Chloride, Sodium, Sodium Chloride. 1. A standard 250 watt metal halide lamp contains around 38 mg of mercury, a 250 watt high pressure sodium lamp contains around 15 mg. A typical high pressure sodium lamp will last longer than a metal halide lamp of similar wattage. Metal halide lamps promote vegetative growth in plants because they emit a bluish white light ideal for vegetative growth. A metal halide bulb produces about 65-110 lumens of light per watt while a high pressure sodium bulb produces about 96-150 lumens of light per watt. These alternatives also have longer average lifespans. Her interest areas for writing and research include Biochemistry and Environmental Chemistry. High Pressure Sodium: The term high pressure sodium describes a form of light that is used mainly in industrial lightening, and is a type of growth light commonly used for indoor gardening. Metal halides are compounds composed of a metal ion chemically bonded to a halide. A metal halide bulb will produce around 58 lumens per watt; 14,500 lumens total. This type of lamp emits an orange-red glow that is ideal for flowering. MH vs HPS. Can You Grow Plants With Only a Heat Lamp? Both the MH and the HPS are widely used for outdoor lighting. Metal halide lamps produce light in the white and blue spectrums, while high pressure sodium lamps produce light in the yellow, orange and red spectrums. A good quality HPS lamp will give you the same amount of … Blue light is said to affect hormone levels and slow melatonin production. vs a stock farrari enzo (sunpulse metal halide) who do you think would win. A lot of time we are asked what is the equivalent LED product to convert from Metal Halide, High Pressure Sodium or Mercury Vapor. just my opinions though. High Pressure Sodium: High pressure sodium lamps have sodium, mercury, xenon, etc. The metal halides used for this purpose are metal bonded with bromine or iodine. Here’s a closer look at what grow lights are, what each of the aforementioned different types of lights are, and what are the differences between them. High pressure sodium is a term used to describe a type of lamps that are used to produce light used in lightening streets, industrial lightening and as a plant growth stimulator. Anyone who uses them in any other way either cannot afford what is needed, so they pick one and hope for the best, or they do not know enough about plant needs to post a valid comment. Title: Metal halide is much less efficient than high pressure sodium--that is, it produces much less light per watt Created Date: 1/29/2007 11:02:43 AM These compounds are used in metal halide lamps. Some coordination complexes are also considered as metal halides since there are metal ions bonded to halide ions via coordinate covalent bonds. “Sodium chloride crystal” By Walkerma – Own work by the original uploader (Public Domain) via Commons Wikimedia 2. The low pressure sodium lamp was the first sodium lamp to be developed. Two main types of MH grow light bulbs are commonly available to growers: 1) Standard metal halide bulbs, which must be operated on metal halide ballasts or digital ballasts, and 2) metal halide conversion bulbs which must be operated on standard high pressure sodium ballasts or digital ballasts. Figure 3: High Pressure Sodium Lamps can be used to Lighten Streets. HPS has a red or orange tint and is used primarily in the flowering phase of your plant's life. Metal Halide: Metal halides are compounds between metals and halogens. Rick Rowlands. “Metal-Halide lamp.” Wikipedia, Wikimedia Foundation, 21 Nov. 2017, Available here. For example, Titanium tetrachloride [TiCl4], chromium(III) chloride [CrCl6]3−, etc. Ionic compounds such as sodium chloride, covalent compounds such as palladium chloride and some coordination compounds are considered as metal halides. Metal halides are compounds between metals and halogens. High pressure sodium lamps last longer than metal halide; they also produce more lumens per watt. by Garrett Rudolph August 1, 2014. written by Greg James August 1, 2014. Metals form cations by removing one or more electrons from their outermost electron shell. Are Yellow Light Bulbs All Right for Seedlings? Both types come with unique advantages and disadvantages. There are several advantages and disadvantages of high pressure sodium lamps. One, Metal Halide is for the vegetative growth stage and the other, High Pressure Sodium is for the flowering stage.. you use both.. period, the end. Exposure to metal halide can contribute to muscular degeneration. What is a Metal Halide – Definition, Different Types, Metal Halide Lamps 2. 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. High Pressure Sodium: High pressure sodium lamps are used for lightening purposes and in plant growth stimulation. For parking lots, warehouse lighting, or security lights, 5000K is a much brighter and cleaner looking option for your corn cob LED light. Show Printable Version; 09-04-2011, 07:31 AM #1. 1. 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. Since we will be talking about High Pressure Sodium (HPS) lights, we will also be talking about Metal Halides, which are a counterpart to it. A 250 watt metal halide lamp will last from 10,000 to 15,000 hours. An ionic bond is a type of chemical bond which has an electrostatic attraction between a cation and an anion. HPS - High Pressure Sodium. A 250 watt high pressure sodium lamp can last from 12,000 to 24,000 hours. The major disadvantage is that it still has a bad color when compared to a metal halide lamp. Difference Between Metal Halide and High Pressure Sodium, What is the difference Between Metal Halide and High Pressure Sodium, Difference Between Protonation and Deprotonation, Distinguish Between Binary Acids and Oxyacids, What is the Difference Between Aromatherapy and Swedish Massage, What is the Difference Between Lyocell and Viscose, What is the Difference Between Pine Tree and Christmas Tree, What is the Difference Between Aioli and Mayonnaise, What is the Difference Between Massage Oil and Body Oil, What is the Difference Between Chia and Basil Seeds. This light can stimulate the growth of plants. inside a tube made of aluminum oxide. Figure 2: Palladium Chloride Polymeric Chain. Some metal halides have covalently bonded metals and halogens. Here, the halide ion is called a ligand. CMH grow light lamps are a relatively new source of HID light that is a variation of the traditional Metal Halide HID lamp. Like Metal Halides, High Pressure Sodium lights are omnidirectional, which wastes light and makes them less efficient. These metal halides are highly soluble in water forming the aqueous metal ion and the halide ion. Mercury should be kept out of landfills both because it is dangerous and because it is easily recyclable. CMH - Ceramic Metal Halide. These compounds have high melting and boiling points. why would you do that if you really want the best quality bud. An arc through the lamp Only have around 3 % blue in the flowering phase of plant. 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