They lose roughly 15% of their heat emissions which adds to their inefficiency. G8LED grow light reduce electricity by 40-50%. Which do you use or prefer and what is your reasoning behind it. For parking lots, warehouse lighting, or security lights, 5000K is a much brighter and cleaner looking option for your corn cob LED light. Metal halide lamps are a form of the light source that creates light via passing an electric arc through a gaseous mixture of mercury vapor and vapor of some metal halides. I am about to buy a combo (hood, digital ballast, and bulb) and they have a deal where I can get a metal halide and hps for 45 bucks more. HPS Vs CMH Vs LED Should you upgrade from HPS and MH to CMH or LED? It provides its light from the electric arc and through a very tiny discharge tube. Ceramic Metal Halide grow lights are basically a variation of MH grow lights with a little of HPS added into the mixture. Difference Between Metal Halide (MH) vs HPS Grow Light Bulbs . Blue regulates internodal distance (the distance between branches). On average Metal Halide bulbs typically last for 1.5-2 years of 18/hours a day. A: Lumens is an antiquated way of comparing grow lamps. However, there are a number of differences between the two as well. Thinking about a little indoor gardening this winter? 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. A halogen is a monovalent element which readily forms negative ions. For a more detailed look, check out my in-depth article on ceramic metal halide lights. As we mentioned earlier, the wattage of the metal halide does not correlate with the wattage of an LED. Metal Halide and Sodium Vapour are discharge lamps, much like a fluorescent tube, where the gas is the lamp is glowing, rather than a filament like with halogen. I have read that Metal Halide is better to Veg with than a HPS and I just wanted to put my feelers out there and see what you guys think. The HPS will put out probably more weight but ceramic metal halide going to give you a healthier and more oil rich product. The key difference between halogen and metal halide is that a halogen is a group 17 chemical element, whereas metal halide is a compound containing a metal and a halogen.. Metal halides are ionic or covalent compounds of halogens. What is the better choice between LED vs HID grow lights? 1.) Compared to halogen light bulbs that last about 6,000 hours, it is a significant difference. However, ceramic metal halide bulbs run a lot cooler than MH and HPS bulbs by about 8°F. Sodium Lamps: High-pressure sodium sources were developed primarily for their energy efficiency. They are less effective during the vegetative stage, however, which means purchasing separate blue-colored bulbs – usually metal halide. 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. Traditionally growers used Metal Halide (MH) bulbs during the VEG cycle due to the high percentage (23%) of blue in the MH spectrum. As plants reach the flowering/fruiting stage the HPS spectrum enhances the quality of fruit and a larger harvest. My advice by and run them both. GE's High Intensity Discharge lamps (HIDs) share a number of important qualities – including high efficacy and a long life – that combine to make them the most efficient light source for a wide range of different commercial and industrial applications. The bulbs in this family produce a large amount of lumens, which is … Like Metal Halides, High Pressure Sodium lights are omnidirectional, which wastes light and makes them less efficient. Metal halide lamps last about 15,000 hours, and HPS bulbs can last up to 24,000 hours. It comes in a wide range of wattages, from 250 to 1,000. HPS grow bulbs produce the yellow-red light ideal for the flowering phase of your grow. 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. The light produced by HPS bulbs is … It is a better light than high pressure sodium. Both the MH and the HPS are widely used for outdoor lighting. 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. A halogen is a chemical element and all the elements in the group 17 of the periodic table are known as halogens generally. 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. Metal Halide (MH) Metal halide is a HID style grow light. 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. Metal halide lamps generate a white light between 3000K and 5000K. Metal Halide are a good source of high CRI white light. They offer high efficacy, excellent color rendition, long service life and good lumen maintenance. Most of the times, the metal halides are compounds containing bromine and iodine as the halide component. Common metal halide to LED replacements: by Garrett Rudolph August 1, 2014. written by Greg James August 1, 2014. Outstanding light quality, exceptional reliability & environmental compliance – ultra-efficient HID Lights from GE. And you definitely shouldn't be paying $44 for a 400W MH lamp. 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. • Photosynthetically Active Radiation (PAR) is what really matters to plant growth, and delivery of usable PAR is better with HPS than metal halide. Spectrum comparison. yet. MH grow lights (metal halide) are suited best for vegetative growth and HPS grow lights are superior for flowering. Omnidirectional. A metal halide lamp is an electric lamp that illuminates using an electric arc with a gaseous mixture of mercury vapor and metal halide compounds. Metal halide vs. high-pressure sodium: An age-old question for cannabis growers. They emit mostly blue light, which encourages vigorous growth of foliage. The HPS spectrum mimics the outside autumn light increasing the plants demand for light. To give you a rough idea of how long that is, halogen light bulbs are what are used for headlights in cars. Because of their numerous advantages, metal halide lamps are used extensively in outdoor applications and in commercial interiors. The unique technical characteristics of metal halide lighting consistently outperform incandescent, mercury, HPS and fluorescent alternatives. So, even though you have a 1,000 watt metal halide fixture, you will not need to replace it with a 1,000 watt LED fixture. Metal Halide vs. Incandescent A 100 watt metal halide lamp provides five times the lumen output of a 100 watt incandescent lamp and it will last 20 times longer. Metal Halide vs. Re: 400W Metal Halide vs 400W HPS « Reply #6 on: January 09, 2015, 10:36:29 AM » Author: nicksfans I would either keep using 400-watt MH or MV lamps or change the ballasts. These types of lighting are more efficient than halogen but their useful life peaks very quickly, and their performance deteriorates after a few hundred hours. 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. Color Rendering. I have noticed that the Ceramic Metal Halide HPS Retro bulbs produce less lumens compared to other HPS bulbs? An LED ran cooler than CMH's by at least 2°F, and overall 10°F lower temperature from a higher-powered LED. When you buy this, you get one metal halide grow light, one HPS grow light, hanging kits to ensure that you are able to hang your grow lights properly, one reflector hood to enhance the efficiency of your light and to increase the coverage area, a ballast in which these bulbs can fit in – and lastly a programmable timer. That said, a very broad spectrum of CRI values is available ranging generally from 65-95. Well, both these lights have specific characteristics that … This is the hardest part for people considering trying the CMH's to get past. How it Works: The lamp uses mercury vapor to create the powerful light (like the high pressure mercury vapor) but includes other metals (halide salts) to improve the color.. A Halide is a chemical compound of a halogen combined with an electropositive element, or in the case of lamps: a metal. MH vs HPS. 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. Brand new, fresh out of the bag metal halide fixtures have an initial output of about 100,000 lumens per 1000 watt bulb. This is a quick take on MH vs. CMH lights. • HPS is about twice as electrically efficient as metal halide. Metal halide: 90 lumens/watt High pressure sodium: 107 lumens/watt Metal Halide (MH) Metal halide lighting systems are optimal for use in the vegetative phase of growing. For comparison purposes, the only disadvantage I can think of CMH over MH is the initial cost. LED vs HPS, MH (HID) Grow Lights. Spread and Intensity of Light About 24% of the energy used by metal-halide lamps produces light (65–115 lm/W), making them substantially more efficient than incandescent bulbs. First of all, remember that although similar, CMH and MH are not the same. Ceramic Metal Halide. CRI for LED is dependent on the particular light in question. • The enhanced blue in metal halide does not lead to increased plant growth compared to HPS in the “veg” stage. 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