LED Grow Light - Hydroponic Supply - Induction Grow Lights
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Inda-Gro Lights Explained
Aquaponics & Aquaculture
Plasma Lighting

YouTube Informational Videos

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Inda-Gro Pro 420 PAR Series
WC-X-150 Series LED
Flower Initiator

New Product-Press Release
Inda-Gro Power Supply Options
LED Spectrum Boosters
Smart Greenhouse Day-Lighting


NEWS! An advanced, user friendly, Grow light Source.com website is up and running for your use and enjoyment. All this Information, and more, is served up in smaller, easier to find modules, relevant videos and slides shows are available at each product page. You are invited to write product reviews, and to use the social links to share stuff with your communities. Visit our partner, GrowLightSource.com, to acquire light products, Led4Growth.com is an information only Website.Grow Light Source

The PLS by LG is no longer sold in the US, with no UL approval LG will not market them. Magnetic Induction Lighting is recommended as the superior cost effective and productivity choice over Microwave Induction Lighting.

How it Works!
Emulated Non-Video Education Links

Close-up Look at a Pro 400

Brilliantly Intense

Information has been put into digestible tidbits of Video/Slide Shows.
With Broadband, most of these view well in the best HD and in Full Screen.






A two part interview with our fearless leader, Mr. Darryl Cotton, President of Inda-Gro, at the The Weedly News
Darryl does an excellent job of describing many important aspects of this leading technology.


The Links, directly below, Represent much of the information presented in the above Video/slide Shows.

In-Depth Information: Non Video Presentations

Non Video Presentations


Non Video Presentations

The Next Generation Inda-Gro Lights.
The Pro PAR System!

Inda-Gro EFDL Grow Lights provide your plants the best horticultural lighting for explosive growth and high yields from a single lamp source, for the entire Veg through Bud cycle, while saving up to 70% of the energy consumed by traditional lamp technologies.

Beginning with the proven efficiencies of low wattage and high output EFDL technology, Inda-Gro lamps combine a blend of 12 rare earth phosphors to supply the proper spectrum for overall plant lighting needs.

First introduced and patented in 1891 by Nikola Tesla, induction lamps, while expensive, were always prized for their High Lumens per watt, Low Operating Temperatures, Crisp Color, Long Lamp Life and Low Lumen Depreciation over their entire life.

Inda-Gro EFDL Dual-Band-Spectrum lamps have affordably combined the proven benefits of this technology supplying unique spectral requirements so essential for robust plant development.

Benefits of Inda-Gro Induction Grow Lights

  • Saves up to 70% in electrical loads.
  • Emits 95% PAR usable light.
  • Excellent canopy penetration.
  • Faster rooting of clones and seedlings
  • Long life lamps and drivers.
  • *60,000 hour 10 year warranty.
  • Highest lumens per watt of any lamp manufactured.
  • Single lamp for vegetative through flowering stages.
  • Low operating temperatures require no added ventilation.
  • Fewer plant diseases related to higher temperature lamps.
  • UL Listed.
  • Fully assembled, tested & wired to plug in to a standard 120 volt outlet.
  • Four Pro 400 Series will run on a single dedicated 120 volt 20 amp circuit.  A built-in pre-conditioner (+/- 20v) for a stable internal supply voltage.
  •  220VAC, or 277VAC and NEMA cord end options, please let me know.
  • 30 day return policy less shipping and handling
  • World wide next day shipping of all stock items, once your fund transfer is verified.
  • Buy Now?

Plant Growth and development are significantly influenced be both the quantity and quality of the light received, converted, through a process known as PHOTOSYNTHESIS, into energy which the plant requires to successfully mature.

Proper indoor grow light, with a sun light spectrum, can also mitigate disease pressures that are often seen with plants grown outdoors. These plants are naturally affected by the number of cloudy days versus sunny days, humidity and leaf wetness. Lack of solar radiation may subject the plants to disease that the indoor grower can better control.

Inda-Gro Light

How it Works!
Brilliantly Intense!

Well Protected
Out of the Box

Seasonal Color Theory

Dig Deeper
In-Depth Information

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The Inda-Gro Light is an Electromagnetic Fluorescent Discharge Light (EFDL).  A good EFDL lamp is like a fluorescent lamp on steroids, with no electrodes to wear out quickly, based on Nicola Tesla's well-known principles, light can be generated via a gas discharge through electromagnetic induction.

This EFDL Lamp is a light source that combines the principle of electric-magnetic induction and gas discharging. Since there's no electrode and filament inside the lamp it is also known as the "Electrode-less" lamp.

The life time of Electromagnetic Induction Lamp can be up to 100,000 hours, which is 100 times of incandescent lamp, 5-15 times of HID (High Intensity Discharge) lamp and 5-10 times of CFL (Compact Fluorescent Lamp).

Electromagnetic transformers, which consists of rings with metal coils, create an electromagnetic field around a glass tube which contains a gas, using a high or low frequency that is generated by an electronic ballast.  The discharge path, induced by the coils, forms a closed loop causing acceleration or avalanche of free electrons, which collide with a solid amalgam of mercury atoms which excite the electrons. As the excited electrons from these atoms fall back from this higher energy state to a lower stable level, a plasma state, as they emit ultraviolet radiation. The UV radiation is converted to visible light as it passes through a 12 phosphor coating on the surface of the tube, which in this instance produces a strong full spectrum response.  All but 2-3% of the UV is converted, the small remaining UV is beneficial to plant growth.  The unusual shape of an induction lamp maximizes the efficiency of the fields that are generated

ADVANTAGES:  This is a very green technology, with only a tiny solid amalgam of mercury, in a little bump on the side of the tube, to excite the electrons for starting the plasma reaction, unlike the more generous mercury inside fluorescent tubes.
. With Inda-Gro Lights: A 10 Year or 60,000 hours, whichever comes first, Warranty.  60,000 hours equals an average of 14 hours per day over 10 years.
. One light for the entire Clone through Bud cycles.
. 55-70% energy savings, when mover and air conditioning savings are accounted for.
. EFDL Produces an extremely effective broad and continuous spectrum suitable for grow lighting .
. Light efficiency per watt is many fold of that of LED grow lighting.
. The price is lower compared to LED or better than that of the same wattage.
. The lifespan is extended, the light spectrum is more stable and light decay is decreased, twice that of  LED lamps and 10x HPS.
. Lower Temperatures: There are no cooling fans, no noise.  Lower temperature operation can save high cost of air-conditioner, and  has less risk of being found by a remote heat detector.  The lower temperature makes for a reduced fire hazard both from heat and circuit overload.  Always use correctly sized cords, wires and circuit breakers suiting your local building codes and the requirements of your lighting, and entire system.

COLOR THEORY:  Why Full Color Spectrum makes the most sense.
Outdoor Sunlight produces a full but seasonally shifting spectrum of light, during the long summer days when the sun is high overhead the sunlight is of longer duration, greater intensity and contains a higher ratio of Blue light, HID/MH lamps color rendering index does not mimic this season's index closely enough, HID lamps produce excessive Yellow light which is not very useful to growth with harmful UV and IR. levels, about 25% of the energy is useful.  In greenhouses and outdoors, the long lighting period, the intensity and color content all effect the amount of growth experienced during the summer season.

During the late summer and fall as the sun appears to become closer to the horizon, the light passes through the atmosphere at a progressively sharper angle, through thicker air, and is filtered by this lens to have a higher ratio of Red.   But light predominately composed of Red and Blue light is not enough.  Natural sunlight also contains Green but appears predominately white, white light actually contains all visible colors of the natural worlds palette, witnessed by viewing visible light as it is passes through a prism.  Natural light reflects or absorbs as each plant needs and with each season, the colors we see are those which are largely, but not totally, reflected. 

To simulate a fuller spectrum 3 phosphors is not enough, he optimum way to provide a full color spectrum is to use a light source that employs 12 phosphors, viewed by our pupils as white.

Our newest lights by Inda-Gro hold the promise of a full spectrum of colors in suitable proportions, allowing natures automatic spectrum compensation and efficient plant/light interception (absorption) to take effect.  The 12 phosphor coating provides a nicely simulated Rainbow Sun Spectrum.

LED and Spectrum: A very good Spectrum can be accomplished with LED light now, if one uses enough different nm range bulbs, I have yet to see truly enough range employed.  To date few manufacturers employ Green, you just can't get a really full spectrum, all of the subtle variations of colors needed without the Green component.  LED's lack the total intensity of Induction Lighting.

Future Applications of Horticultural LED Lighting, Specialized Supplemental Light:  The experts tell me these lights will not be supplemental, but an essential factor.

The Flower Initiator, this light will be used for mere minutes after light out as a phytochrome trigger, to hasten the instigation of Budding, reducing the phytochrome switch period from 2 hours to 5-15 minutes

TESTIMONIALS:   Or, what some nice people have said!

"I have had time to decide, I love the lights and the light bill. Thank you for guiding me and helping with the purchase. I will be ordering again in the next few months. I am also interested in information on the Bud booster light you have listed on your webpage. I believe induction is the way to grow.... Thanks again

I started seeds six weeks ago under the Inda-Gro. They are 2 1/2 feet tall and ready to be changed to the new light cycle soon. As a first timer (with Induction Lighting) I am glad I did my research on (these) lights to be able to save on my electric bill, get a great crop, and show these men up that say it's a man's world. LOL. Kicking butt of the 1000w HM and HPS all the way around. It doesn't get any better than this. Thank you for answering all my questions with this purchase and my electric setup.  (She used 1 Pro 400 Series Inda-Gro with 320Watts of Blue Booster LED grow lighting, the grow room is 8 x 10.)

I am very happy with my results since a friend is growing under a 1000w HM and we started our seeds at the same time, same organic nuts, and same strains. He started under T5 and about 8 inches tall changed to the 1000w, his electric bill is crazy, and my plants have full green leaves, about 8 inches taller and little bushes. I am happy to have something to compare my grow to and rub it in his nose. LOL. 
I am trying to decide if I need 2 or 3 more lights and what I wanted. I guess I know, I want your new light when I am ready. Thanks for all you do for me. I tell everyone about you and give them your page." -- LK in CO.


"William is the growers most 'enlightened' advanced technology lighting resource. He earns the title 'Beacon Bill,' with his insights into new systems that I call 'best-of-class, best-of-breed. Most important, he understands that his customers are in the 'results business' and require exemplary service and product support.  I've since purchased multiple, larger lights consistently attaining excellent productivity increases, two weeks quicker to harvest, and energy cost-efficiency. I intend to add his newest Lights without question." --FA in WA.

WX-C-150 Series LED Grow Light
WX-C Details/Specs
The Lowdown on LED Grow Lights


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Inda-Gro Pro 420 PAR Series
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