LEDs are very easy to dim and options are available to use anywhere from 100% of the light to 0.5%. LED means Light Emitting Diode. LEDs emit very little forward heat. Metal Halide / High Pressure Sodium to LED Wattages Conversion: Original Lamp: LED Lamp: 70 Watt Metal Halide: 30 Watt LED: 100 Watt Metal Halide: 40-50 Watt LED: 150 Watt Metal Halide: 60-70 Watt LED: 175 Watt Metal Halide: 80-90 Watt LED: 70 Watt High Pressure Sodium: 40 Watt LED: 100 Watt High Pressure Sodium: 50-60 Watt LED: 150 Watt High Pressure Sodium: 80-90 … Low and High Pressure Sodium lights are very cheap to purchase as well as fairly cheap to maintain. The typical 100W-equivalent LED light costs somewhere between $10 and $20. LEDs fail by dimming gradually over time. 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. Our value engineering service can help.). Lorem ipsum dolor sit amet, Mastled established in 2009 and located in Shenzhen China. As mentioned, the operating life of a typical Metal Halide bulb … 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). See the chart below to see an example of a LED spectral chart: To get you more familiar with LED grow light spectral charts for different phases of growth, below we have the HLG 300L Rspec (flowering phase/full cycle) and Bspec (vegetative phase) so you can compare them. During start (while the sodium is still in solid form) the lamp emits a dim reddish/pink glow. A recent addendum to the original report examined LED street lights that could match the pole spacing provided by incumbent 150W HPS street lights. With a LED vs HPS comparison it can be hard to compare apples to apples because there are a lot of things that come into play besides the initial purchase price. Additionally, HPS lamps pose a potential fire hazard, especially when you dispose of them. Incandescent bulbs and CFL bulbs are more easily broken than LEDs, which increases their cost of use. HIDs are very efficient compared to CFL and incandescent lights (120 lumens/watt source efficiency). Lumen maintenance at the end of life still is excellent at around 80%.” LPS lights last slightly shorter periods of time (typically failing around 18,000 hours of operation). Typical source efficiency ranges 37 and 120 lumens/watt. LPS or HPS lights will still likely need to be purchased several times and the associated labor costs will need to be paid in order to attain the equivalent lifespan of a single LED light. (Don't give up if you received an expensive proposal to upgrade to LEDs. Phoenix: HPS to LED Conversion Analysis Data (Arterial street) Units HPS - 250 Watt LED - 139 Watt Lamp and Fixture (Mat. Starting is relatively simple with small tubes but can require significant voltage with larger lights. The overall performance drop is relatively low over time with around 80% output being normal near the end of life. Also, LEDs waste less energy producing waste heat, resulting in longer life and the best energy efficiency. Additionally, as the light heats up it requires additional voltage to operate which is balanced by a ballast (a magnetic or electric device designed to provide the light constant current). There are four major advantages to LED lighting: In addition to the major advantages, LED lights also offer several smaller perks. That said, the price of LEDs are rapidly decreasing and as they continue to be adopted en masse the price will continue to drop. LEDs have virtually no warm-up time. For an interesting take on the history of street lighting in the United States read here. The extremely low maintenance and replacement costs with LEDs is actually a major cost benefit over the long term. The results of the life cycle cost analyses are summarized in the chart below. Although High Pressure Sodium lamps emit visible light across a slightly more broad spectrum than Low Pressure Sodium lamps, they are still very limited. If you’re interested in the technical details of how an LED works you can read more about it here. It is only recently with the advent of affordable and prevalent LED lighting that they are being consistently surpassed in terms of energy efficiency and lifespan. Low and High Pressure Sodium lights are well-known for their warm yellow glow (CCT values around 2200K). Foot Candle ratings are very application specific and vary case by case so it is difficult to say if LPS/HPS or LED would be better performing without the specifics of the particular situation. Minus 40 Degrees Celsius (and they will turn on instantaneously). So, if you need help with your high pressure sodium to LED conversion, MastLED is here to help. LEDs are popular because they ar… All in all this makes the applications in which LEDs can be used extremely diverse. Sodium lights operate in a range where the human eye is very sensitive and so there is less power required to achieve the same lighting effect. Mastled Lighting Technology CO LTD specializes in researching, manufacturing and customization of LED indoor and outdoor light fixtures since 2008, with monthly output of over 50,000 lamps. Parking Lot Lighting, The difference is that sodium vapor lights were the most efficient technology of the 1970s while LEDs are the modern day equivalent. Sodium lamps have the worst color rendering of any bulb. Typically they fall around 25 on a scale of 100 where 100 is the best possible. That said, a very broad spectrum of CRI values is available ranging generally from 65-95. Only) $ $230.00 $475.00 Fixture Installation (Labor) $ $29.00 $29.00 Manufacturer's Lamp Life Hours 20,000 50,000 Annual Energy Costs $ $72.36 $32.88 Lamp Replacement Cost $ $1.20 per month $0.60 per month* Broken bulbs release a small amount of toxic mercury as a gas and the rest is contained in the glass itself. They produce steady light without flicker. LED is the newest and by far the best lighting technology available, using less wattage to produce high levels of brightness. My grow closet measures 2′ x 8′. Watch time lapse footage with real results. Gongming, Bao’an District, The mercury inside the bulbs is a hazardous material that can present a waste disposal issue at the end of light’s life. The HPS vs LED grow light matchup is a clash of the titans. HPS light setups have a cheaper initial start-up cost, but the price gap between comparable HPS and LED grow has become much smaller as LED grow light setups have become more and more affordable each year. 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