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          Due to the implementation of the Minimata Treaty, there will not be any more of over “ninety” mercury-based products (thermostat, fluorescent or mercury lamps, etc.) manufactured or imported into the United States. We believed this was not going to occur until 2022 / 2023. Since most of our lamps have come from Japan and China, we are at a crossroad that came to soon. LED illumination is not even close to mercury vapor. It would probably be four to five years before an equivalent lamp would be made available.

          The “best technologically advanced LED lamp” currently costs JWLI $165.00. The LED beam spread is only 40% versus mercury vapor 130 degree spread. The color of 5,000K LED is hideous. Lamp life of MV and LED are very close, 24,000 vs. 25,000 respectively. Most of all, the brightest LED current light is equivalent to only around 70-80 watts of mercury vapor gas discharge. Simply, if your trees are larger than 15-17 feet tall, then you are “NOT” able to use LED currently.

          Over the last year, as the largest purchaser of mercury vapor lamps for landscape illumination in the United States, we have been stockpiling at the best price available our custom lamps and transformers. We currently have over 9,000 mercury vapor lamps of all wattages, as well as transformers for their usage remaining. This JWLI custom equipment will last only around a year before we exhaust our stock. The last international container of lamps was delivered Fall of 2020 to the United States at a tremendous increase in price of 120% to 180%.

          To all our valued clientele, we want to offer the ability for our clientele to have “one exact set” of your JWLI designed lamps and associated transformers needed. The extra set of equipment will enable your current artistic design to continue working perfectly for five to seven years. By then, if not before, I do believe they will have a comparable LED lamp. These new LED lamps, when finally available at a respectable price, are compatible with your existing “bullet fixtures & recess units”.

          When we continue in the future years to maintain your beautiful JWLI nighttime ambience, there will only be the charge of labor to maintain your lighting units. We will keep track of all the lamps and transformers we use each year for your records.

A couple of our clients had specific questions that are answered below. Thought this would be good for you to know.

           First, mercury vapor has five different lamp wattages, as well as four different transformer / capacitor types. I’m sure supplier are unloading their small inventory now that compatibility becomes an issue. Not all combination of ballast, capacitor and lamp work together.
          Second, JWLI purchases very large quantities of the best compatible equipment to last the longest and brightest. Yes, larger quantities in the thousands do cost more per piece of equipment, especially since there is not anymore to purchase.
          Third, just to clarify your overall budget. Included is the cost of lamps that will be bubble wrapped individually by JWLI to prevent breakage. Also, we test a certain amount of each case of lamps and transformers to make sure they are working perfectly. Yes, this process takes much time and labor. However, JWLI will only deliver your custom equipment the safest way possible.  

Q & A Quick View:
Q1: Why continue to use mercury vapor gas-discharge lamps?
A1: When illuminating for security, safety or aesthetic purposes in trees over 15-18 feet due to current LED limitations in brightness and beam spread.
Q2: Why are mercury vapor lamps not available anymore: 
A2: Minimata Treaty banned all uses of mercury based equipment around the world in ninety different applications. JWLI, and our founder John Robin Watson, in 1952-1954 helped create the 24,000 mercury vapor lamp. Almost seventy years later, as the largest supplier of parabolic mercury vapor lamps in the USA, we began amassing an inventory of many thousands of lamps for our clientele to have until an LED equivalent beam spread, intensity and Kelvin color could be matched in all wattage intensities. 
Q3: What are current LED Kelvin colors versus original JWLI mercury vapor lamps:
A3: LED is only 5,000 kelvin versus “True Moonlight” 5,700 kelvin for mercury vapor.
Q4: Life of lamp comparison:
A4: Mercury vapor 24,000 versus LED 25,000 hours. 
Q5: Lumen Intensity:
A5: Brightest parabolic LED lamp equivalent to eighty (80) watts of mercury vapor.
Q6: Spread of Light: Mercury vapor in all wattages from 50 to 250 watts (10-60 foot height light intensity available) with a  135 degrees beam spread. LED maximum wattage will attain 15-18 feet of correct brightness at 80 degrees. Landscape illumination for aesthetic or security purposes in trees above 18 feet will have tight 30-40 degree beam spread. 
Q7: When will LED illumination match all mercury vapor wattage illumination specifics:
A7: Probably not until 2024-2025 the earliest.