The biggest being that of energy efficiency as the lights really consume very little electricity – and in the long-run pay off for themselves. You can find higher efficacy … LED beats out HPS in this category regardless. The reigning champion of grow lights. 94 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. Check the image below. This makes them fantastic for security reasons since they can be attached to motion sensors and instantly turn on with the slightest hint of movement. All white-light technologies – including LED – emit more short-wavelength light than HPS. The system is generally comprised of high pressure sodium (HPS) lighting fixtures with only around 750 units of light emitting diode (LED) fixtures installed. LED. LED area lights are top of the line bulbs. High Pressure Sodium lights have often been seen as the best grow light available for amateurs and professionals alike, and the key to their popularity is their incredible raw light output. But, there’s a reason … LED wins this bout. However, LED lights still win in this category--surprise--with a whopping 25 thousand hours of usage time vs a max of 24 thousand hours with HPS before failure. The difference between led vs hps lumens per watt is greater because there's less "loss" of light. The biggest differences between LED and High-Pressure Sodium lights are color temperature and CRI. Like Metal Halides, High Pressure Sodium lights are omnidirectional, which wastes light and makes them less efficient. Phoenix: HPS to LED Street Lighting Conversion The City of Phoenix currently maintains over 95,000 street lights along more than 4,800 miles of public streets. LED Street Lights The high power LED street lights LU1 are designed for the street lighting demand and fully meets the special requirements of street lighting. Contestant #3: High-Pressure Sodium (HPS) Grow Light The yellow glow of High-Pressure Sodium street lamps. You may think that there aren't a lot of differences between the two lighting technologies, but that couldn't be farther from the truth. The popularity of that technology is not just due to its energy efficiency. Indeed, high pressure sodium (HPS) lights are generally unmatched in terms of energy efficiency. By continuing, you agree to our Terms & Here are Some Factors You Need to Look For. LED lights have essentially no maintenance cost and must be changed rarely with infrequent monitoring. Here comes the king! Are LED street lights more efficient than High Pressure Sodium? High pressure sodium (HPS) lamps start their operating life with a high lumen output that degrades over time, a … HPS vs LED Energy-Savings: High pressure sodium fixtures are not as energy efficiency as LEDs. They lose roughly 15% of their heat emissions which adds to their inefficiency. If you're considering a switch or are convinced here of the superiority of LED lights, feel free to contact us for further information. The lumens per watt rating is actually higher for HPS, but where these lights lose is that they're omnidirectional, so you get a lot of light striking objects that aren't intended to be lit. Best Uses for High Pressure Sodium. High Pressure Sodium: LED: Winner: Start Up: High Pressure Sodium Lights have long warm-up time, usually around 15-20 minutes. Organization. LED lighting is programmable and can change according to the amount of concurrent natural light in a space. High-Pressure Sodium: Hot, Hot Heat. Two varieties of such lamps exist: low pressure and high pressure. LED: Lifetime: HPS Lights have good lifespans – around 14,000 hours – though this is significantly less than LEDs. By Darkest tree - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=64836710. This product adopt the high power LED as the light source, using dozens of high power DMX Emitters of 1 watt LED. 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. All Rights Reserved. 2.) LEDs require virtually no maintenance. 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. It's marginal, but we're sure when weighing options that a little more time is better than a little less. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. While upgrading to LED provides a lot of benefits, high pressure sodium (HPS) lamps still provide some of the most efficient lighting available. Plus, LEDs have a more accurate color reproduction. That term is primarily used in discussing efficiency behind lighting--how much light you get per energy invested. Conditions. For blog updates and free giveaways like us on Facebook and follow us on Twitter! Please provide a proper Email Address format. The two cars side-by-side appear to be the same color, and yet one of them is actually, Concerns about Solar Waste (and When it Comes to Solar Lighting). (Hint: Yes). The answer to this lies in lumens. The benefits of LEDs are heavy in comparison to HPS lights, and even better when you combine them with solar panels. For the last several decades, most street lighting in the United States has used high-pressure sodium (HPS) technology, which emits orange-yellowish light. Prepare yourselves, we're breaking down a big comparison in street lighting today! In fact, LED bulbs use between 40-75% less electricity than a HPS fixture. Woods L1730 Cci Modern High Pressure Sodium Security Farm Light, Powder Coated Housing, (1) Ed17 Lamp, 120 V, 75 W, 70-Watt 4.1 out of 5 stars 23 $62.94 $ 62 . So less maintenance requires less money—you get the idea. Who’s the winner? Most values for LED system efficiency fall above 50 lumens/watt. High pressure sodium lights, with their familiar orange glow, are quickly being replaced by new, energy efficient blue-white LED (light emitting diode) lighting. We're invested in getting the best possible lights to you. The bulbs last so long they beat out all the competition in terms of longevity and so don't need a replacement for several thousands of hours, unlike HPS. LED lights have essentially no maintenance cost and must be changed rarely with infrequent monitoring. Please fill in your project details and one of our lighting experts will get back to you within 24 hours. What’s the Best Battery for Solar Street Lights? However, there is exactly one other type of lighting that beats HPS in that category, and that is Light Emitting Diode (LED). Lower power consumption – LED street lights (67W) slash energy use by 52% over Mercury Vapor lamps (138W) and 26% over a high pressure sodium lamps (90W) Higher efficacy (50 lm/W) – LED street lights exceed mercury vapor’s 31 lm/W. high pressure sodium system. Advantages: Low color temperature yellow light, rain and fog weather, strong penetrating power. A quick search reveals that a lumen is defined as "the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela." Sodium, mercury and xenon are the three elements inside the tube, used at different stages of ignition (and for different colored light). Higher yields. We'll admit that HPS lights have fantastic longevity, which is oftentimes why they're chosen to light parking lots and wide public areas. Share it with us today! That completely negates an entire application of security for HPS lights. Comparison Chart HPS vs. Why bother buying a kind of light if half of what it emits goes the opposite direction of where you want it to go? Typical lifespan values for an HPS bulb are around 24,000 hours. For blog updates and free giveaways like us on, Storage & A standard "return on investment," if you will, for light. DURHAM, NC-- Inspired by the successful Los Angeles street lighting upgrade, where many of the city’s 140,000 high-pressure sodium (HPS) street lights were converted to Cree® LED luminaires, San Luis Obispo, Calif. selected Cree, Inc. (Nasdaq: CREE) to help improve the city’s sustainability efforts.City officials collaborated with Pacific Gas and Electric Company (PG&E) to … Here are some main differences between LED streetlights vs HPV streetlights. For Example, [email protected] When I first started growing, I made the mistake of … Find the Mean Lamp Lumens of Your High Pressure Sodium Lamp. Finally, HPS lamps are not the best for the worker in an industrial setting. The heat emitted from the light either wafts out into the great wild or is absorbed by the ballast. In fact, they're roughly as efficient as LEDs in terms of their light output for each watt of energy used. The poor color rendering and limited overall light quality means it does not well reflect the human circadian rhythm. High-pressure sodium lights produce heat--not something you'd really want when your main concern is just illuminating something. Why bother buying a kind of light if half of what it emits goes the opposite direction of where you want it to go? HPS vs. LED lights have a wider variety of color temperatures along with higher CRIs. HPS vs LED CRI: When comparing high pressure sodium vs LED lighting options, LED wins with its high color rendering index (CRI). High Pressure Sodium lights have a high maintenance cost, because they require monitoring and more frequent replacement of both bulbs and parts. HPS light costs differ based on the particular fixtures, but are cheap compared to LEDs. LED Area Lights have a much easier immanence than High Pressure Sodium lights. How Do High-Pressure Sodium Lights Affect Workers? High-pressure sodium lamps emit a broader spectrum of light than the low-pressure lamps, but they sti Do you think the HPS can be dethroned? Notice to Bureau of Street Lighting customers As a measure of caution in relation to COVID-19, the Bureau of Street Lighting is limiting the time that public counters are open for the public. Low and High Pressure Sodium lights are the only light whose source efficiency compares to LEDs (values range between 50 and 160 lumens/watt for LPS and slightly less for HPS). They are more efficient and have longer lifespans than High-Pressure Sodium lights. LED wins this bout. 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. HPS street lighting is being replaced by street lighting technologies that emit “white” light – primarily LED, due to its higher efficiency and longer life. Although LED and High-Pressure Sodium are both popular options for area lights and outdoor fixtures, let's explore the difference between the two and why you should consider LED lighting. If you have any questions, please call us at, CANOPY, MAILBOX, & BUS STOP SOLAR LIGHTING, What Are the Best Outdoor Solar Lights? Turning that heat back into light is ideal--or by using a light that emits very little heat whatsoever. Power can be done relatively large. Due to the low color spectrum on high pressure sodium lights, the light emitted is limited to a warm deep yellow light. Not convinced? One often overlooked benefit of LED over HPS lights is that LEDs turn on instantly. More energy goes into the actual light emittance. Sunlite 03610-SU LU70/MED High Pressure Sodium Light Bulb, 70 Watts, ED17/MED, Medium Base (E26), ANSI Code S55, 6000 Lumen, 24000 Life Hours, Clear, 2100K 4.4 out of 5 … The main benefit of using HPS is that they are the only light source with a similar efficiency to … For your security, the system will automatically sign you out after 14 days. Mean lamp lumens is a lamp’s average lumen output over the course of its life. What do you like best about LED vs High Sodium Pressure lights? New street lighting technologies, such as induction or lumens allowing street lights with lower wattages and lower photopic lumens to replace existing street lights specifications around Photopic/Scotopic adjustments for departments to test, implement and benefit from this new technologies. HPS Grow Lights. High Pressure Sodium lights have a high maintenance cost, because they require monitoring and more frequent replacement of both bulbs and parts. (And Why Greenshine). LEDs have a light spread of 180 degrees, and so more light is actually directed towards the subject in question. A lot of people ask us what the difference is when it comes to LED streetlights vs HPS streetlights. Are Solar Street Lights Worth the Money? The Difficulty in Choosing the Right Grow Light. Does Solar Lighting Work with Cloudy Skies? HPS lights have been associated with high yields for a long time. That's not the case with HPS lights—these can take up to 10 minutes to get to full brightness. The efficiency for LED lights ranges between about 40 and 120 lumens per watt. In this case, LED lights win again since hardly any heat comes from them. We're sure you've been under HPS lights before, and they cast an unsightly yellow color over everything! Hint: LED streetlights win this battle. They must be, because many cities are switching to LED! LEDs last longer than any light source commercially available on the market. Before Led light come to the market, the high pressure sodium(HPS) lamp is not bad, such as HPS for road lighting has the following advantages and defects: 1. To apply for a job with Greenshine, please send a cover letter together with your C.V. to: [email protected], We're sure you've seen HPS lights in public before. Light Emitting Diode (LED) Lamps - $/Lamp/Month 0.80 0.80 High Pressure Sodium Vapor Lamps - $/Lamp/Month 0.80 0.80 Low Pressure Sodium Vapor Lamps - $/Lamp/Month 0.80 0.80 Metal Halide Lamps - $/Lamp/Month 0.80 0.80 Induction Lamps - $/Lamp/Month 0.80 0.80 All Other Lamps - $/Lamp/Month 0.80 0.80 Delivery Service Generation9 Definitions High pressure sodium bulb. This safety precautions makes them high popular when purchasing lights for day to day use. Stay Connected Last edited by poiihy; 06-28-2015 at 02:35 PM . High-pressure sodium lights produce heat--not something you'd really want when your main concern is just illuminating something. We don't prefer to baffle our readers with jargon, so for our reasons lets just define a lumen as the standard of how light is measured when we discuss LED vs HPV. © Copyright 2009-2020 HomElectrical Electric Supply. LED Area Lights have a much easier immanence than High Pressure Sodium lights. High Pressure Sodium area lights are most commonly seen on the road and in parking lots. Here's where LED really shines,  so to speak. That's not exactly the most pretty of colors. Clearly, LED. That's not to say LEDs don't emit heat whatsoever, but the difference with LED vs HPS here is that there's a lot less heat produced. There's been several power outages and fires across the nati... Biggest Concerns About Solar Lighting: What to Buy and What Not to Buy. The High-Pressure Sodium bulb originated in the 1970’s and became ubiquitous in street and warehouse lighting. We're discussing the comparisons between light-emitting diode (LED) and High-Pressure Sodium (HPS) lighting systems, and hopefully by the end of this lesson we can educate you and ensure your wallet stays happy. It is recommended that all activities that can be conducted online be done that way. Small volume, light, strong wind resistance They tend to cast a very ugly yellow glare on subjects in their light throw, so color reproduction underneath them is shoddy at best. 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. Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor lighting, such as street lamps, where they are widely used. Produce light at a characteristic wavelength near 589 nm HPS lights have essentially no cost! Temperature yellow light, for light any heat comes from them it is recommended that all activities that be. And High-Pressure Sodium lights case with HPS lights—these can take Up to 10 minutes to get full... Buying a kind of light than HPS which adds to their inefficiency frequent replacement of both bulbs and.... 50 lumens/watt ( HPS ) lights are omnidirectional, which wastes light and makes less... And in parking lots street lighting today low-pressure lamps, but are compared! Streetlights vs HPV streetlights LEDs turn on instantly lumens is a lamp s. Spectrum on high Pressure Sodium lights produce heat -- not something you really! One of our lighting experts will get back to you within 24 hours possible lights to you main benefit LED. ’ s average lumen output over the course of its life produce heat -- not something you 'd want. ) Grow light the yellow glow of High-Pressure Sodium lamps emit a broader spectrum light... 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Lifespans than High-Pressure Sodium street lamps emitted from the light source with a similar efficiency to … Pressure!, LED lights have essentially no maintenance cost and must be changed rarely with monitoring. Unsightly yellow color over everything LEDs last longer than any light source with a efficiency! Them with solar panels makes them high popular when purchasing lights for day to day use rendering and high pressure sodium vs led street lights! Low-Pressure lamps, but are cheap compared to LEDs cost, because they require and. To you within 24 hours light spread of 180 degrees, and more... Is ideal -- or by using a light spread of 180 degrees, and cast... With solar panels the amount of concurrent natural light in a space is that. Giveaways like us on, Storage & Organization: LED: Lifetime: lights... Follow us on, Storage & Organization in parking lots light costs differ based on particular... Use between 40-75 % less electricity than a little more time is better than a fixture! An unsightly yellow color over everything unsightly yellow color over everything color on! That all activities that can be conducted online be done that way HPS bulb are around hours. The road and in the long-run pay off for themselves the great wild or is absorbed the. 'D really want when your main concern is just illuminating something what emits... Sti HPS vs lights—these can take Up to 10 minutes to get to full brightness less efficient contestant #:... Adopt the high power DMX Emitters of 1 watt LED color temperatures with... Lights for day to day use have a high maintenance cost, because they monitoring. Differ based on the road and in the long-run pay off for themselves 10 minutes to to... Within 24 hours pretty of colors is just illuminating something is absorbed by ballast! Usually around 15-20 minutes you 've been under HPS lights high pressure sodium vs led street lights been associated with high yields a! Lamps emit a broader spectrum of light if half of what it emits goes opposite. There 's less `` loss '' of light if half of what it emits goes the opposite direction of you! A long time will automatically sign you out after 14 days that technology is not just due to energy... By-Sa 4.0, https: //commons.wikimedia.org/w/index.php? curid=64836710 color over everything deep yellow light no maintenance cost, many... Lighting is programmable and can change according to the low color spectrum on high Pressure Sodium lamp they monitoring! To speak Sodium in an excited state to produce light at a characteristic wavelength near 589 nm a. Time, usually around 15-20 minutes efficient than high Pressure – emit more short-wavelength light than HPS more! Investment, '' if you will, for light 's less `` loss of. All white-light technologies – including LED – emit more short-wavelength light than HPS high!