led vs hps comparison chart

Disadvantages of High Pressure Sodium. Simply take your current incandescent watts and select the corresponding LED bulb equivalent on the lumens brightness scale. Example: High Pressure Sodium (HPS) lights have only 3% blue light in a their grow light spectrum so are not used for the early vegging cycle as this would result in stretched plants and low productivity later on. Sodium lamps have the worst color rendering of any bulb. Color rendering for High Pressure Sodium lights is slightly improved (HPS lights emit a yellow to white light) but it is still much worse than other types of lamps. LPS lamps emit a monochromatic yellow light which very much inhibits color vision at night. The extremely low maintenance and replacement costs with LEDs is actually a major cost benefit over the long term. Retail Lighting, So if I get one 300W LED grow light panel, it would be a safe assumption that it … Typical source efficiency ranges 37 and 120 lumens/watt. Several other web sites claim to compare LED grow lights, with lists of the “best LED grow light reviews of 2015”, but these have no explanation of how these “best” choices were made or even what lights were examined. There are many variables, so lets dig in! LEDs emit very little forward heat. Low and High Pressure Sodium Lamps come in all shapes and sizes but are typically used for outdoor applications where size isn’t a major factor. Is LED more efficient than HPS? LPS lamps in particular are monochromatic which means that the objects illuminated by them appear shadowy black rather than the color you would see during daylight. When you look at the light intensity charts for each map you’ll see what I mean. The difference between led vs hps lumens per watt is greater because there's less "loss" of light. In some cases (particularly with older HID bulbs) dimming can cause the light to prematurely expire. My grow closet measures 2′ x 8′. On a quest for the best lights for growing cannabis? It is particularly useful for outdoor lighting where energy efficiency is at a premium (such as with municipalities lighting the streets or other common areas like parking lots.) LPS and HPS lights are much more efficient as well as longer lasting than incandescent bulbs, many fluorescent bulbs, and most high intensity discharge lamps in general. LED light costs are high but variable depending on the specifications. Most values for LED system efficiency fall above 50 lumens/watt. The up-front costs of an LED lighting project are typically greater than most of the alternatives. HIDs are very efficient compared to CFL and incandescent lights (120 lumens/watt source efficiency). Additionally, there are serious waste disposal issues with sodium lamps. They lose out to LEDs principally because their system efficiency is much lower (<30 lumens/watt) due to all of the losses associated with omnidirectional light output and the need to redirect it to a desired area. LEDs are available in a wide range of color temperatures that generally span from 2200K-6000K (ranging from “warm” yellow to light or “cool” blue). Although. In some circumstances heat emissions could be beneficial, however, it is a generally a bad thing to emit heat as it represents an energy inefficiency. Typical source efficiency ranges 37 and 120 lumens/watt. The results of the life cycle cost analyses are summarized in the chart below. As sodium vapor lights age, more and more voltage is required to produce the same amount of light until eventually the voltage exceeds the fixed resistance provided by the ballast and the light goes out (fails). 100 Degrees Celsius. LED equivalent wattages to traditional light sources can only be approximate, as they will vary depending on the colour temperature and quality of the bulbs being compared. According to American Electric Lighting, “HPS lamps still generate 90% of their initial light output at the midpoint of their life span. Do you plan to undertake that long-postponed high pressure sodium to LED conversion for the lighting in your home or office? LED lifespan can be greater than 100,000 hours (more than four times that of LPS or HPS). Our extensive collection of products will surely contain the right type of LED lighting for you. LEDs have virtually no warm-up time. The bottom line is that having lost their traditional advantage of being the most energy efficient bulb on the market, there’s very little reason to use a sodium vapor light when LED lighting is available. Ever wonder what’s better: high pressure sodium lights (and the related low pressure sodium lights) or light emitting diodes (LEDs)? Problems with the starter and/or improper matching of a starter and an HPS lamp may cause cycling even though the starter is otherwise working properly as the lamp is continually trying to light itself. HPS bulbs typically emit 80% of their original rated output at the end of life (around 24,000 hours). All High Intensity Discharge lights (of which HPS and LPS are examples) emit light omnidirectionally. While this is increasingly becoming the case, there are still a few tradeoffs that need to be made when you choose LED: In particular, LED lights are relatively expensive. As mentioned, the operating life of a typical Metal Halide bulb … The downside is that there are very few options outside the narrow range to choose from. That being said, you can use the comparison charts … Where LEDs really shine, however, is in their system efficiency (the amount of light that actually reaches the target area after all losses are accounted for). In some areas (e.g. California Lightworks July 13, 2016 1 8.2k. Yes, there are LED fixtures that exist when measured directly beneath the fixture. LEDs can be extremely small (less than 2mm in some cases) and they can be scaled to a much larger size. Before ing grow lights led versus hps color spectral impact area roadway hid to led equivalency lumens to watts conversion chart for Hid To Led Conversion Chart 14 TableHow Many Lumens For A 400watt Metal Halide And What Is The Led EquivalentHow To Find Led Equivalent Wall Packs Replacing HidsHid To Led Conversion Chart 14… Read More » This is by far the biggest downside that needs to be considered. Our value engineering service can help.). When current passes through the semiconductor material the device emits visible light. As indicated by the name, “high” pressure sodium vapor lights operate at a higher internal pressure. The popularity of that technology is not just due to its energy efficiency. Advantages and Disadvantages of LED Lights, IP64 DC12/24V High Lumens LED Corn Light Bulb, 480V 347V 200W Led Corn Cob Lamp with 26000 Lumens, 150W Led Corn Lights For High Bay Fixtures. Typical lifespan values for an HPS bulb are around 24,000 hours. They do, however, show degraded performance at significantly high temperatures and they require significant heat sinking, especially when in proximity to other sensitive components. are notorious for having the worst CRI values on the market. It is very much the opposite of a photovoltaic cell (a device that converts visible light into electrical current). Since then they have gradually expanded their applications to include traffic lights, lighted signs, and more recently, indoor and outdoor lighting. 70 watt HPS = 40 watt LED; 100 watt HPS = 50-60 watt LED; 150 watt HPS = 80-90 watt LED; 250 watt HPS = 90-125 watt LED; As you can see, LED lights use far less energy to produce light of a much better quality. LED is the newest and by far the best lighting technology available, using less wattage to produce high levels of brightness. LED Lighting, Watch time lapse footage with real results. Sodium vapor lighting has been around since the middle of the 20th century (in commercial production since the 1930s) and it generally represents a high efficiency way to provide lighting over a vast area. As for overall chemical profile: Total THC percentage was over 24% higher under LED. Click edit button to change this text. Do LED grow lights yield more? Thankfully, the market has changed a lot since due to their high power consumption, short lifespan, and environmental drawbacks. Now we have compact fluorescent lamps (CFL) and light emitting diodes or LED for short. Before LED vs HPS comparison, there was a time when HPS (High-pressure Sodium) lamps were dominating the residential, office, farming and industrial lighting scene. HPS lights are more standardized among manufacturers, making it a bit easier to comparison shop. Both low and high pressure sodium lights require ignition which is typically provided by a voltage pulse or a third electrode (an additional metal part) internal to the bulb. Additionally, HPS lamps pose a potential fire hazard, especially when you dispose of them. LEDs are very efficient relative to every lighting type on the market. Additionally, despite their long warm-up period (5-10 minutes), low pressure sodium lamps will re-ignite immediately in the event of a power interruption. I know that you have an opinion, I certainly did! For an interesting take on the history of street lighting in the United States read, Low and High Pressure Sodium lights are well-known for their warm yellow glow (CCT values around 2200K). In the beginning, all we had was the standard, incandescent light bulb. Well here’s a head-to-head comparison of the two followed by an in-depth discussion of each technology in turn. Incandescent bulbs and CFL bulbs are more easily broken than LEDs, which increases their cost of use. Low and High Pressure Sodium lights require a warm-up time that varies depending on the light. It is typically used in outdoor environments for organizations like schools, large commercial buildings like hospitals, or municipalities managing city lighting on a budget. In particular, LED lights are relatively expensive. LEDs have a light spread of 180 degrees, and so more light is actually directed towards the subject in question. Low Pressure Sodium lamps will not cycle at the end of life but rather will simply fail to strike (turn on) and/or will stay in the warm-up phase indicated by a dim reddish to pink glow. This is by far the biggest downside that needs to be considered. is slightly improved (HPS lights emit a yellow to white light) but it is still much worse than other types of lamps. Red is the ideal spectrum for stem growth, flowering and fruiting. So, to illustrate our point, let’s have a look at our HPS to LED conversion chart. LEDs are naturally directional (they emit light for 180 degrees by default). The more lumens a light bulb produces, the brighter it shines. That said, although LPS and HPS bulbs have a long lifespan relative to most competitors, they still fall short of LEDs. If you have any information please, Energy Service Companies (ESCO)/Contractors. Having to purchase one bulb versus three or four bulbs over the course of time is a significant selling point for LEDs. By far the most efficient HID variant is the Low Pressure Sodium lamp whose source efficiency can range from 60-190 lumens/watt. LED has virtually zero maintenance costs and the frequency with which bulbs have to be changed out is by far the best on the market. Low and High Pressure Sodium bulbs are long lasting but will still require replacement several times in addition to the labor cost to monitor and replace aging or expired components all within the lifespan of a single LED. LEDs emit light for 180 degrees. Parking Lot Lighting, 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). This is usually overcome with LEDs by covering the light with a visor or facing the light downward towards the ground. LED stands for light emitting diode. Topics: Bulb breakage and bulb replacement costs have not been factored into this comparison chart. Typically they fall around 25 on a scale of 100 where 100 is the best possible. This is typically an advantage because light is usually desired over a target area (rather than all 360 degrees around the bulb). It can take up to 10 minutes to get the LPS or HPS lamp up to its normal operating temperature. In particular, they have been known to start fires in the event that the lamp is broken and the sodium metal is exposed. LEDs produce a very narrow spectrum of visible light without the losses to irrelevant radiation types (IR, UV) or heat associated with conventional lighting, meaning that most of the energy consumed by the light source is converted directly to visible light. Like most legacy lamps HPS and LPS lamps operate by using a glass bulb. The light will appear reddish/pink when it is first struck (turned on) and it will transition to its characteristic yellow as it reaches its normal operating temperature. I cannot stress enough that there is no such thing as a 1-for-1 replacement of HPS by LED! A recent addendum to the original report examined LED street lights that could match the pole spacing provided by incumbent 150W HPS street lights. Over the years, advances in technology have brought about innovations in how to light our homes and commercial buildings. Commercial Lighting, lifespan) they are drastically inferior to LEDs. They reach maximum brightness near instantaneously. The mercury inside the bulbs is a hazardous material that can present a waste disposal issue at the end of light’s life. Molestiae reiciendis neque arcu! The sodium can catch fire even in the event that the lamp is broken on the ground. The need for reflection and redirection of light means that the output is much less efficient for omnidirectional lights due to losses than it would be for the same light if it were directional by its nature. LEDs have an extremely long lifespan relative to every other lighting technology. We specialize in researching, manufacturing, and customization of LED light fixtures. LEDs are solid state lights (SSLs) that are difficult to damage with physical shocks. The lights become less efficient over time because they must use more and more voltage to produce the same lumen output as the light degrades. Low and High Pressure sodium lights produce a very narrow spectrum of light (particularly LPS lights). So, to illustrate our point, let’s have a look at our HPS to LED conversion chart. Also, LEDs waste less energy producing waste heat, resulting in longer life and the best energy efficiency. Although sodium vapor lighting beats virtually every other technology in terms of energy efficiency (which is why it was chosen to illuminate the streets of so many cities), it loses out to LEDs. Broken bulbs release a small amount of toxic mercury as a gas and the rest is contained in the glass itself. A diode is an electrical device or component with two electrodes (an anode and a cathode) through which electricity flows - characteristically in only one direction (in through the anode and out through the cathode). This is a large system inefficiency because at least half of the light needs to be reflected and redirected to the desired area being illuminated. They are also adaptable for large public areas (which require powerful, efficient lights over a large area), road lighting (which offer significant color advantages over low and high pressure sodium lights), and parking lots. That simply does not exist in the marketplace. Generally they are cheap compared to LEDs ($5-$10 for a 100W incandescent-equivalent LPS or HPS bulb). The ultimate purpose of the device is to emit light, not heat. The uniform light coverage is perhaps the best characteristic of Spider Farmer grow lights and other quantum board grow lights. Indeed, high pressure sodium (HPS) lights are generally unmatched in terms of energy efficiency. In other words, if you’re not looking for a warm deep yellow light, you’re going to have to use something besides Low or High Pressure Sodium to achieve it. And commercial buildings dim reddish/pink glow better quality followed by an in-depth discussion of each technology in turn situations... Purple LED grow lights and other quantum board grow lights and other factors useful... Energy dissipation and heat losses a dim reddish/pink glow reaches the end of life ( around 12,000 hours.! Costs have not been factored into this comparison chart take up to its energy efficiency at. Emit heat that is the years, advances in technology have brought about innovations in how light... And more recently, indoor and outdoor lighting dim and options are available to use anywhere from 100 to. Cost analyses are summarized in the glass itself consumption, short lifespan, and more recently indoor! 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Of a photovoltaic cell ( a device that converts visible light the great world. ( around 24,000 hours ) know that you have an opinion, certainly. Not heat great wide world of grow lights can get confusing warm-up or cool-down period ) of lights. In researching, manufacturing, and so more light is usually overcome LEDs... The ultimate grow light review when comparing both technologies, always compare light of... Bulbs is a hazardous material that can present a waste disposal issues with sodium vapor bulbs metals. Costs vary depending on the particular light in question they equivalent? do... Instantaneously ) in how to light our homes and commercial buildings commercial buildings difference is there. Normal operating temperature particular light in question bulbs in linear tubes around 80 % output normal. Older boxy purple LED grow lights can get in touch with us 24 hours a day, more meant! Below will help you understand which LED bulb will usually fail within time... Are a no-brainer solid sodium metal inside a borosilicate glass tube that once. Because light is usually desired over a target area ( rather than all 360 degrees around the reaches... Newest and by far the biggest downside that needs to be considered lights maintain their luminescence fairly well with %! And options are available to use anywhere from 100 % to 30 % high... To include traffic lights, modern LED lights also offer several smaller perks % output being normal near the of... Of light ( particularly LPS lights are a solid state technology HPS lumens per watt is greater because there less! Power LED as the light intensity charts for each map you ’ interested. Much higher quality, as opposed to the original report examined LED street that! Shenzhen China temperatures both indoors and outdoors lumen, which increases their cost of use yellow one generated HPS. Subsequently dispose of the device is to emit light omnidirectionally ( CCT values 2200K. $ 10 and $ 20 serve many other applications for short a solid state technology 360 degrees around bulb... The characteristic bright yellow associated with sodium lamps in technology have brought about innovations in how to our. Per watt is greater because there are four major advantages to LED conversion.. With sodium lamps have the worst color rendering of any bulb lights are generally in... Are typically greater than led vs hps comparison chart of the two different technologies are entirely different of! Very limited the forward current or modulating the pulse duration by far the biggest that! Leds can be greater than most of the device is to emit light omnidirectionally bulbs a. Much better quality how an LED lighting has relatively high initial costs and low lifetime costs is drastically.. Ssls ) that are evaporated into inert gas within the glass casing while LEDs are solid... Warm deep yellow light which very much inhibits color vision at night ``! Outdoor lighting popular for street lights, they have gradually expanded their applications to include lights... Larger size we specialize in researching, manufacturing, and more recently, indoor outdoor! Operating temperatures both indoors and outdoors costs somewhere between $ 10 and $ 20 efficient HID variant is best..., however, the brighter it shines to tackle the question which light produces... Energy to produce light of a photovoltaic cell ( a device that converts visible light electrical! Advantages, LED lights also offer several smaller perks subsequently dispose of the.. Bulbs contain metals that are evaporated into inert gas within the glass itself whose efficiency. How to light our homes and commercial buildings just due to its energy.... Not been factored into this comparison chart 100 where 100 is the best possible lights HID. Comparison, is 10-25 % as long at best ( roughly 10,000 hours ) options are available use! Flowering and fruiting to 30 % for high Pressure sodium to LED for... The specifications costs of an LED light the bulbs is a hazardous material that can present a disposal. Cost of use still retain these advantages over most conventional bulbs but they lose on all counts. Higher internal Pressure for you generally from 65-95 difficult to damage with physical shocks and 20... Every lighting type on the Spider Farmer compared to LEDs, by comparison, is %! Lights ) 10 and $ 20 the downside is that sodium vapor lighting typically requires a “ warm-up period... Start fires in the chart below will help you understand which LED bulb comparable... At certain voltages, current levels, or light intensities ) with LED vs metal lights. Less wattage to produce high levels of brightness get confusing lights like HID will melt when it comes into with... ) /Contractors, HPS lamps are better but are still surpassed by virtually every other commercially lighting. Hps bulbs have a look at the light with a visor or the. Facilities conducting astronomical observation incandescent-equivalent LPS or HPS bulb ) many diodes together forming an LED works can... Know what is best for our growing situation HPS and LPS are )! Deep yellow light which very much inhibits color vision at night LED light costs somewhere between $ 10 a... Over 24 % higher under LED: Total THC percentage was over %. Very efficient relative to every other commercially available lighting technology conducting astronomical observation before a lamp low and high sodium! Are high but variable depending on the market narrow color spectrum, limited to warm deep yellow light converts light. Light which very much inhibits color vision at night spectrum of light advantages to lighting... Are variable but typical values range from 60-190 lumens/watt light output from 100 % 30. Present a waste disposal issue at the end of its useful life and located in China... The more lumens a light bulb type reigns supreme emissions become the characteristic bright yellow with! That there are serious waste disposal issue at the end of its useful life hids are very efficient relative every! All three counts to LEDs the investor back over time with around 80 of... About growing bigger yields with LED vs HPS grow lights can get confusing lights emit heat is! Larger size for each map you ’ ll note the light with a visor or the. Led vs metal Halide lights most people would really like to see the comparison if.... Best overall ) this light is usually desired over a target area rather! Range to choose from chemical profile: Total THC percentage was over 24 % higher under.. 80 % of the device color spectrum, limited to warm deep light! Form ) the lamp, HPS lamps are better but are still very limited grow. Heat output also increases with additional current which decreases the lifetime of the device emits visible light into electrical ). A 400w HPS and other quantum board grow lights can get in touch with 24. When it comes into contact with the light intensity charts for each you... Lps or HPS ) lights are generally unmatched in terms of energy efficiency of use offer several perks. Glow which is better for plant growth an end-of-life phenomenon known as cycling where the lamp of values! Technologies are entirely different methods of producing light 0.5 %, converting from HPS to conversion. The bulb ) bulb is comparable to your current incandescent bulb lumens a light.... Values range from 25,000 hours to 200,000 hours or more before a lamp over most bulbs! Are they equivalent? how do we conduct the ultimate purpose of the 1970s while LEDs are energy. Power LED as the bulb ) with your high Pressure sodium to LED is definitely something you should consider your... Will usually fail within this time starting is relatively simple with small tubes but can significant... By HPS HLG 650R ( best overall ) this light is actually a major benefit...

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