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2 BULBS, THE BEST FLUORESCENT 4' LIGHT GROW LIGHT TUBES, F40T12 FT
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2 BULBS, THE BEST FLUORESCENT 4' LIGHT GROW LIGHT TUBES, F40T12 FT
2 BULBS, THE BEST FLUORESCENT 4' LIGHT GROW LIGHT TUBES, F40T12 FT

2 BULBS, THE BEST FLUORESCENT 4' LIGHT GROW LIGHT TUBES, F40T12 FT

Price: $32.86 add to cart     
Feedback: 100%, 22 sales Ask seller a question
Shipping: US-Mainland: $4.00 (more destinations)
Condition: Brand new
Payment Options: Money Order, Cashier's Check, Cash On delivery, Personal Check,
*The store has not been updated recently. You may want to contact the merchant to confirm the availability of the product.
This Listing is for 2 Four Foot Narrow Spectrum Fluorescent Bulbs Optimized for Plant Growth with FREE SHIPPING. (These are F40T12 ,40 watt ,1.5 inch diameter tubes)(The more tubes you order, the lower your cost)

WHY PAY FOR LIGHT YOUR PLANTS CAN'T SEE? Our Narrow spectrum bulbs are optimized for plant growth. It produces exactly the light a plant wants. This product is for the bigger of the two bulbs shown.

Plants are green because they reflect green light back. Yet conventional grow lights (High Pressure Sodium (HPS) , metal halide (MH) and conventional fluorescents were first developed for humans. Because we see green light the best, these sources are very heavy in the yellow-green spectrum. What a waste! Standard fluorescent grow lights aren’t much better. They still generate lots of green light so house plants look nice. A common misconception is that the ideal color of light for plant growth is sunlight. Much of the light spectrum of sunlight is actually wasted by plants. Again, plants are green because they reflect the green light back. The popular "Grow & Show" wide spectrum type of plant light sold in stores may make foliage look nice and green. But they are not efficient at making plants grow. You can verify in a standard encyclopedia that plants use red and blue energy for photosynthesis. On the other hand, Optimized Narrow Spectrum fluorescents produce light exactly where chlorophyll is most sensitive.

University Studies prove much higher fruit production and growth rates. (Documented below!) North Carolina State University conducted experiments with radish, lettuce, and milo to determine the optimum composition of wavelengths for optimum growth. Dry matter weights were measured. These "optimum compositions" are the basis of narrow spectrum grow lights.The same experiments compared the performance of narrow spectrum grow lights, wide spectrum grow and show lights, and a mix of incandescent and cool white fluorescent light. The narrow spectrum fluorescent was definitely superior at inducing plant growth.



Radish root Milo (a grain)

Wide Spectrum 130 mg/plant 240 mg/plant
Grow Light

Narrow Spectrum 240 mg/plant 665 mg/plant Grow Light

This was confirmed in later experiments comparing wide and narrow spectrum grow lights. Gloxinia plants grew faster and had 50% more blossoms than plants grown under wide spectrums. Corn, lettuce, and tomatoes showed 50 to 60 % higher dry matter production than the same plants grown under wide spectrums. Tiny Tim tomatoes blossomed 1 week earlier. A week later they had 6 blossoms per plant, while the plants under the wide spectrum grow lights only had 2 blossoms per plant.The tomato plants also produced more:

Ripe fruit Immature Fruit

Wide spectrum 187g/plant 415 g/plant
Grow Light
Narrow spectrum 340g/plant 519 g/plant
Grow light

As you can see,the very best light for growth is the narrow spectrum fluorescent

SPECIFICIATIONS:These bulbs fit the most common types of shop lights. These are 4 foot, 40 watt bulbs that are about 1.5 inches in diameter. It will also replace the energy saving 25 or 34 watt bulbs of thesame length. This product is for the bigger of the two bulbs shown. (The smaller bulb is a T8 bulb)Please check our store - we have more available there - we also havethese bulbs in the 4' T8 size, F32T8, and also in 8' High Output, F96T12/HO, 110 watt. See our other listings.

We list complete fixtures using these lamps too. Come to us for all of your lighting needs

This listing is for 3 bulbs with FREE SHIPPING! Save on Multiple purchases of this Item at our Store!, 32.88 for 2 bulbs, 55.99 for 4 bulbs, 76.99 for 6 bulbs & 99.99 for 8 bulbs! Write us if you would like full case quantities.

Our normal turnaround time is 1-2 business days, however, per eCRATER rules - and due to unforeseen circumstances- such as hidden damage - handling time may be up to 2-3 weeks on this item - depending on demand.We don't often have a long turnaround time - as can be seen from our feedback - though it is just good business to let you know it is a possibility, on occasion.
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Last Updated: 22 Oct 2011 22:59:03 PDT home  |  about  |  terms  |  contact
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