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Mixing hps and cmh. CDM860 is 860watts of 3700k ceramic metal halide.
- Mixing hps and cmh Has anyone ran a 50/50 spectrum, and if so, how were the results? I Jan 26, 2020 · MH, HPS, CMH and 3500k 4000k 2700k 5000k LEDs are the lights I have currently and have ran in the past. Jul 30, 2022 · I wanted to get input on the results you guys are getting with these in the finished product. Combining our DE-HPS and SE-CMH / DE-CMH systems in the same lighting plan, growers can create “deep spectral mixing” — combing the complementary spectrums of DE-HPS and CMH at high radiant intensity. LIGHT-EMITTING DIODE (LED): Application: Good for all Feb 19, 2020 · LED vs High Pressure Sodium What are High Pressure Sodium Lights? 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. HID - High-Intensity Discharge Lights HID grow light bulbs are sealed Jan 29, 2021 · Under this umbrella are two types: High-Pressure Sodium (HPS) and Metal Halide (MH). It filters the dominant yellow spectrum from HPS and balances white light from LEDs and CMH. No AC, but plentiful ventilation with climate controls. HID - High-Intensity Discharge Lights HID grow light bulbs are sealed CMH grow lights provide a balanced light spectrum, better energy efficiency, longer lifespan compared to HPS and MH, but they face stiff competition from LED. Let me know if you need more specs May 17, 2022 · Cmh beats MH in every aspect. Emitted UV light is good for plants but not good for prolonged human exposure. Ive always wanted to do a 50/50 mix of hps and mh or hps and cmh if they made cmh's bigger than 400w Go for the mix. Oct 27, 2007 · but i also bought an HPS strictly for flowering. HID - High-Intensity Discharge Lights HID grow light bulbs are sealed Hydroponics relies on both HID lighting and the right mix of color spectrums to cover all phases of growth and boost harvests. Adjustawings Lights were designed and built with one task in mind: to provide the best quality, most uniform, canopy-penetrating and plant-friendly light for grow rooms and climate rooms. Grow Glasses for Grow Rooms with Mixed Lights When mixing light types like full-spectrum LEDs with HPS or CMH, choose the HPS Crystal Lens. 2m of height to grow in. II am starting with 50 HPS, and would like to add another 50 CMH’s to give the overall lite a 50/50 mix. Aug 1, 2009 · using mh and hps lights using mh and hps lights Great bit of info mistress and thx for the heads up im not sure what globe I have! it does have osram powerarc mis written on the box they sure are looking good and can notice that the one under the mh is a little leafier this forum sure has a lot of good information and great people about too Sep 29, 2015 · Also on my new room I want to use hps and CMH mix of lighting to hopefully achieve better yields, flowering times, terpene & cannabinoid levels and overall better growth. Was reading about High pressure sodium lights vs ceramic metal halides and it concluded that the HPS were better for flowering as a single bulb, but I was curious as to what the best combination in a two bulb setup would be. 4% BLUE LIGHT FROM CMH LAMPS IS SLIGHTLY HIGHER THAN A 50/50 MIX OF HPS AND MH LAMPS. Mar 2, 2020 · A leading manufacturer of LED, HPS, CMH and hybrid lighting solutions that deliver unrivaled performance and quality. A CMH lamp has a more uniform spectral output than any other lamp used for plant growth lighting. Cmh has more uv, enough blue and uses way less energy than MH. Excellent broad spectrum color, for all growth phases. Leaning towards transitioning to LEDs but. No co2. Explore sponsor lighting brands, tech comparisons, grow results, and expert recommendations. The negatives in this thread (the non troll negatives, anyway) seem to be mostly around leafier bud w/ CMH. not that I have any reason to doubt NHMI if he says this is the case. Mar 25, 2019 · Hey there everybody, I was just wondering if anyone here has any experience with MH/HPS combo lighting. unless you have a perpetual type grow where half the room is on one month and the other is a month ahead. HPS grow lights are 20 - 30 (that's why it's all orange/yellow in your grow Jan 19, 2019 · Over each bed is two 315 CMH with a 600w HPS in the middle spaced about 24” oc. Reduced heat output vs other HIDs. Benefits of High Pressure Sodium The main benefit of using HPS is that they are the only light source with a similar efficiency to LEDs and maintain History lesson In 2010-2011 When the city of Chicago was looking in 2010 for a new energy-efficient standard for street and alley lights, it chose ceramic metal halide (CMH) lamps, becoming the first large U. sorry, not going all the way through flowering with CMHmay use it to supplement (ie, use it for 1 or 2 weeks of flowering at different times) but other than that, as soon as i switch to 12/12, i'm going from CMH to HPS. Jul 24, 2020 · Just setting up my first grow which is 1600x700 cupboard. Is it possible to boost yields and cultivate high-quality cannabis with energy-efficient lights? Kind LED confidently asserts that it is. (a week or so) Mixing HPS with CMH will give you the most yield while allowing you to lower your final energy output, and the CMH run longer at a more efficient rate. May 21, 2025 · This guide provides a comprehensive comparison between LED (Light Emitting Diode), HPS (High-Pressure Sodium), and CMH (Ceramic Metal Halide) grow lights, focusing on their efficiency, cost considerations, and suitability for different growth stages. Yes led is where its at but I never mention led in the thread and i didn't ask for suggestions on lighting tech. Im not sure about a 400w hps over 2ft away been to much light. FAQ about Metal Halide + HID lamps, harms of LED, Safety Info and more frequently asked questions. CDM860 is a nice lamp. A properly designed hybrid light system using MH and HPS lighting can allow the grower to improve crop productivity and quality. here's a baby at about 11 or 12 days old under a cmh. New LED lights might be better but the older designs would stall the plants until they got used to the HPS light. Ace's Panama, Panama Haze, Killer A5 Haze along with Vietnamese Black are some of my keeper strains that I have been running for at least a year. Apr 3, 2020 · Right now i have 1 315 cmh and a 600 watt hps in a 5x5 and temps are 76-78 so I dont want to get much cooler. Not necessarily true for two of those. May 16, 2020 · Im going to be switching out my 8 1000w DE HPS flower room setup to either CMH or LED next run. Jul 30, 2008 · I would use the CMH for the entire veg from sprout, all the way to week 2 of flower, swap to hps for the middle weeks for your flowering peroid then back to CMH for last 2 weeks to pack on final resin load. or start a seperate grow with just your cfls so you have 2 harvests that way you don't run outta smoke. Click to expand Sep 7, 2025 · On a quest to discover the finest lights for growing cannabis? Between fluorescent, LEDs, and high-pressure sodium (HPS) can often leave you perplexed. NHMI did the bleech badly? do you got any pics before u switched lamp? as for mixing hps and mh, i found you get less stretch on the plants, which for me is good for some phenos not to great for others. I want to see what happens, i think these lights are the future. Nov 20, 2017 · I used to finish under a UV bulb but found a mix of hps/mh in flower returned the same results without a dedicated finishing area/fuss. I'm also assuming the hps mag ballast won't cause any issues with the new 315 ballast. You mention that your considering calling off your test w/ a single HPS inserted into your mix of CMH, why? What specific detriment are you seeing w/ the HPS as compared to the CMH, and in your opinion, is one negative of CMH leafier bud? Apr 25, 2019 · My two cents; having tried this very thing, I discovered that my plants REALLY preferred the CMH spectrum, to the point where mixing the two resulted in worse outcomes than just HPS alone. Temps 78-80 and rh under 50% for the most part. Mixing lamps is almost always a worse bet than having a good spectrum emitting from a single source. I just wanted a bit of blue in flower for hps stretch coz i only have 2. Jul 30, 2022 · I've got enough fire power to start World War 3. If your HPS ballasts are magnetic, you might want to research this some. There's no reason to compare it to HPS other than they both have ceramic arc tubes. THE 13. Why use a HPS if you can get a more even spectrum with the same peak in red without all the extra bullshit. The 13. . Hydroponics relies on both HID lighting and the right mix of color spectrums to cover all phases of growth and boost harvests. The beds are close enough so I get plenty of cross lighting. This lens provides full protection, including infrared blocking, and ensures optimal color balance in complex lighting environments. 2 days ago · Grow Lighting Discuss cannabis grow lighting systems including LED, HID, MH, HPS, CMH, and fluorescent setups. city to use the new lighting technology. I'm 2 weeks in to flowering on an AK47 auto strain and the resin production and health under the 250w cmh is really nice May 4, 2017 · My two cents is research a little on switching from LED to HPS. I have a 220w highlight from diyleduk (my original space was going to be smaller) so I guess I'll be needing some additional lighting. if possible rotate the bulbs or plants or fixtures (whichever is easier to move) every 2 weeks if possible. 4% blue light from CMH lamps is slightly higher than a 50/50 mix of HPS and MH lamps. I can run these around 18” - 24” off the canopy. A CMH's Color Rendering Index (CRI) rating is pretty close to the sun. One side of tent will use 250w cmh & 150w hps and the other side of tent will have a 250w hps and 150w cmh. CDM860 is 860watts of 3700k ceramic metal halide. S. Feb 10, 2020 · In this case, we are talking about a higher red HPS luminaire mixed with a higher blue MH or CMH. CRI is a measurement of how true colors stay when the light is set upon them. Since I already have a 250w cmh on the accendo ballast and another 150w cmh on eballast already ordered and shipped I think I am just going to mix bulbs in the hoods. HID: CERAMIC METAL HALIDE (CMH): Application: More expensive than conventional MH or HPS systems, but more efficient. I'm wondering if the CMH provides enough UVB on it's own if used in bloom? Oct 4, 2022 · CMH vs HPS grow lights — which is best for your hydroponic garden? Here's a breakdown comparison to make the right choice. Oct 3, 2015 · I made that CD spectrometer a long time ago when I first started growing, and I wanted to check the different HID bulbs spectrums and try to get a nice full spectrum by mixing HPS with CMH or MH and also to know what they were putting out. Are there any benefits from mixing cmh or HPS for bud quality or any other reason, with the led, or am I Sep 19, 2013 · Id mix them. My LED is for seedlings and mother/clones only. I do know people are getting tighter, more compact nugs, with more trichomes, by adding the MH at the end of flower. Let’s uncover the five intriguing truths about escalating yields with LED vs HPS grow lights. Let's take a look at the advantages of both, as well as the best HPS and CMH lights for your grow. Here we discuss metal halide fixtures in detail, including applications for growing cannabis (hint: it's in the veg room), lifespan, energy considerations, and other technical details worth noting. Use your 42w cfls to take some clones. buddy is saying that LEDs arent that much more efficient than CMH and CMH has a better spectrum than LED. The weather will be warming up soon but it doesnt get very hot here even in summer so I should be fine. Oct 15, 2010 · The biggest upside with CMH is that they render a spectrum closer to natural sunlight than either MH or HPS. He also said only con to CMH is changing bulbs Jul 30, 2022 · We can of course discuss LED vs HID, but do HPS have any advantages over CMH? CMH is more effective, grow better weed and the bulb lasts much longer. HPS and CMH grow lights are great for any grow room. Philips Son-T Pia Green Power 600W (HPS): 145 lumen/W, 5% loss after 12000 hours Philips Mastercolour The claim from CMH lovers is that your plants can enjoy a nearly full spectrum white light, very similar to natural sunlight that lasts longer than your HID counterpart. A CMH LAMP HAS A MORE UNIFORM SPECTRAL OUTPUT THAN ANY OTHER LAMP USED FOR PLANT GROWTH LIGHTING. Oct 27, 2007 · I think Simba said earlier in the thrad that Phillips holds the Rights to the 600w and 1k CMH. I've had great results in the past with HPS supplemented with additional UVB from a zoologist mega ray bulb. Learn about PPFD, PAR, spectrum, coverage, and light intensity to maximize your plant yields. Jun 16, 2019 · I would like to reuse my hps if possible but have owned it for 20 years, so it could be due for retirement. Bathe your plants with blue-white MH and CMH light during the vegetative phase, and red-orange HPS light during flowering. mrvz1 yieaw7k gfucc myi3d hd w6 uwy hyze 3cwi svjq6