Perhaps like has been done for LED there should be a sticky for; 'Induction Lamp Mfg's with Links'
In the interest of finding the best value I've done alot of research before deciding on growing with induction lighting and I would strongly recommend anyone considering this technology do the same. Look for;
The PAR spectrums (between 400-700 nanometers) the lamp emits based on the phosphors used are everything to make sure the lamp meets your methods and plants needs.
Does the lamp spectrum design require you to buy two lamps (one for veg and one for flower) as opposed to a broad spectrum that allows one lamp to take the plant from propagation thru flowering/bud?
How long is the warranty and where is the service done should I need repairs?
Make sure the lamp/driver is UL rated since the surface temperature of an EFDL @ the glass runs around 200 degrees F (93C) and the driver housings will run around 115 F (46C) then check it @
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.html with a company name or the actual file number. If they do come up in the UL data base you're at least assured of the highest standards for safety compliance have been met.
Does the company discuss their products in terms of plant lighting and not kelvin, lux, footcandles or lumens?
How much PAR energy does the lamp produce (PAR Watts) and how much of that energy makes it to the canopy?
If they are merging or fusing a red and blue lamp together and promoting a veg and flowering spectrum stay away. It's a marketing gimmick that has literally nothing to with with veg or flowering PAR spectrums.
How is it in terms of housing and reflector design for canopy penetration?
What are it's physical size and weight?
Why some of these lights come with a glass cover for an indoor growing environment is a mystery to me but if the light comes with a glass cover is the manufacturer okay with you removing it and is it still protected under warranty?
What is the area of coverage and what are the recommended canopy to lamp measurements within that area?
How much heat does it produce in terms of BTU/hr. While EFDL lamps run an average of 3X cooler than HID you'll still want to know this so you can factor ventilating and cooling of the room.
Do they have any videos or comparison grows they can point you to?
Do they have a website devoted to their EFDL products for grow that goes into detail as to the technology and how it should be used for indoor gardening?
Does the unit come fully assembled and ready to use or do I have to do some assembly such as installing cord ends or installing a housing or reflector?
Is it rated for the supply voltage for my particular part of the world I'm planning on running them in?
Unit cost delivered after all shipping and handling.
Total unit cost should you have to buy additional materials to construct your own housing and reflector materials.
Does the company offer any quantity discounts?
Types of payment accepted. If they don't take cc, paypal or google merchant be very careful since other forms of payment like money orders or direct deposit can't be protested should you have a problem.
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The following links are for reference only as they are companies or sites I've come across that make an EFDL lamp for indoor growing applications. I'm not criticizing or endorsing any of them. They are not listed in any particular order or rank. Do your own research first before buying anything.
http://green-lightsolution.com/
http://www.inductionlamps.com/
http://www.growchief.com/
http://www.lightpros.us.com/
http://www.theteslaagency.com/#!home/mainPage
http://www.igrowlightsdist.com/
http://www.enviro-techlighting.com/d/par_max_efdl
http://www.hydroponicshut.com/bi-spectrum-plasma-induction-grow-lights.html
http://bluesky-growlights.com/purchase.html
http://www.greners.com/i/grow-lights/induction-lights.html
http://www.fluorogrow.com/
http://www.brotherhoodproducts.com/
http://sdhydroponics.com/lighting-accessories/induction-and-plasma-systems.html
http://www.hydroponics.com/news/expo.html
China Direct Induction Grow Lights:
http://www.chinaxqs.com/
http://www.nsllighting.cn/
http://www.mlandglobal.com/
http://www.yml.cc/en/Plant-Grow-Lighting.html
http://www.orientlantern.com/proshow.asp?flag=1&BigClassName=Indcution Lighting
http://en.lclighting.cn/
http://en.jolighting.com/main.html
http://www.lvd.cc/en/lvd/principle_63.html
Happy Growing!