igrowhydro.com presents a quick guide to grow lights
Learn about the different types of grow lights
We've broken down grow lights in to some basic categories.
High pressure sodium grow lights are good for the fruiting and flowering phase of plant growth. High pressure sodium lights come in 4 sizes: 1000 watts, 600 watts, 400 watts and 250 watts. Your light should be chosen based on a few main variables. How much area do you need to cover with the light? How many plants do you want to grow? Do these plants require a lot of energy (such as tomatoes and eggplants) or are they lower on the needs level, like African violets.
Here we have three popular 1000w grow lights. A Super Sun, the most popular & professional reflector, combined with a 1000 watt ballast and bulb. Next we have the Cool Sun which offers the ultimate combination of air cooling and performance. 6" or 8" built-in flanges. With ballast & bulb. Finally the Econo Wing, an inexpensive reflector combined with an inexpensive ballast creates an affordable grow light.
Metal Halide grow lights are good for vegetative growth or for plants that will not bloom. The letters MH stand for Metal Halide. Of the two kind of HID lights, metal halides have the more balanced spectrum. They will bathe plants in light from the bluer end of the spectrum, which indicates to the plant that it's spring and time for growth. Metal Halide light is used for plants which are encouraged to grow many leaves and become bushy such as lettuce, spinach, cabbage and herbs. They are also excellent for the vegetative stages of growth. They promote tight internodal spacing between branches, and help the plants to develop thick stems and large greener leaves which will support later fruit and flower growth.
Top 3 metal halide grow lights: Adjust-A-Wing is one of the most cutting-edge reflectors available. Batting second is the Daystar - a uniform ultra-wide light delivery reflector paired with a MH ballast and bulb.Finally we've got the Cool Tube Reflector with a HydroFarm Ballast.
Digital ballasts produce more lumens while using less electricity than regular grow lights. These new ballasts are extremely light weight and significantly more efficient than the old 'core and coil' magnetic ballasts. Digital ballasts are the "greener" way to grow. Because these digital ballasts run cooler and more efficiently, you use less energy to produce the same output. Two of the top brands are Quantum digital ballasts and Lumatek digital ballasts. Both brands are quality made and come with some unique features. Here are a few examples of digital grow lights.
First we start with the new Liquid Lumens Liquid Cooled Lamps you've been waiting for paired with the Lumatek Digital Ballast. The second example is a Lumatek Digital Ballast Grow light with the LumenMax Reflector. Lastly a Quantum Digital Ballast Grow light package with Radiant Air Cooled Reflector.
Grow Light Information from igrowhydro.com
From digital ballasts to HID bulbs and more.
How many grow lights do you need?

This is an age-old question that we feel needs some special attention. Of course no one can fully answer how many lights is right for any one grower. But, what we can offer is some useful information that will help you come to a descision that is right for you. The more light you add into a grow space, the more fruit / flowers you will produce.
Light is directly proportional to yield (up to a point of full saturation). You cannot produce more light than what the sun would produce on its brightest day. So how do we decide what too much light is? Or how much light is enough for a given grow space? Below, we have gathered information that you can utilize to make your descision.
Light Requirements for the Major Stages of Plant Growth
Different light levels are required for the different stages of plant growth. A general rule of thumb has it so that 1/4-1/3 of the wattage you are using for the Bloom Stage is necessary for use in the Vegetative Stage of Plant Growth. An example would be 41000w lights are to be used in the Bloom Stage - Anywhere from 2 400w lights to 3 600w lights can be employed for the VegetativeStage. Beyond this, it also about spreading the available light as evenly as possible. This depends on the incorporation of the above layout diagram as well as the use of a good reflector.
Below are foot candle/lux measurements which can be used to help dial in your growing.
One Foot Candle = 10.76 Lux
Vegetative Growth Stage - 2,500-5,000 FC --- 25,000 - 50,000 lux
Bloom (Fruiting / Flowering) Stage - 5,000- 6,500 FC --- 50,000 - 70,000 lux
Ripening Stage - 3500 - 4500 --- 35,000 - 45,000 lux
We like using 55-60,000 lux or 5500 Foot Candles for optimum growth in the main part (usually weeks 1-6 of the Bloom (Fruit / Flower) Stage.
Max Sunlight on earth's surface is 90,000 lux and is not good for plant growth. Generally speaking over 70,000 lumens and you are beyond the optimum level of light for photosynthesis to occur. Don't become a grower who just doesn't believe and over does their lighting. Just becuase it is cool doesn't mean it is not too intensely lit.
Related Hydroponics Web Sites
Indoor growing stores and popular grow light manufacturers
- igrowhydro.com
- igrowhydro.com is a fantastic site for all things hydroponics. They carry a wide varaiety of indoor grow lights plus all the needed accessories. They offer a price match guarantee and have pretty reasonable rates for shipping. They have a huge amount of information on all things hydro and all in all, a great hydroponics resource.
- GreenCoast Hydroponics, Hydroponic Systems - Grow Lights, Advanced Nutrients and Green Air Products
- GreenCoast Hydroponics carries the best grow lights, hydroponic systems, Adjust-a-Wings, Advanced Nutrients and environmental controllers.
- Quantum
- The world of indoor gardening has changed forever with the introduction of digital lighting. A new alternative to heavy, noisy, power wasting core and coil ballasts had reached our shores.
- Hydrofarm - Grow Lights, Hydroponics and More!
- The Hydrofarm family of products includes everything from cutting-edge XTRASUN lighting systems to our Active Air fans & filters.
Green Coast Hydroponics
serving Southern California
GreenCoast Hydroponics Santa Barbara
3560 State Street
Santa Barbara, CA 93105
Local Number: 805-898-9922
Toll Free: 1-877-694-9376
Fax: 805-898-0047
Store Hours:
Monday - Friday 10:00 am - 6:00 pm
Saturday 11:00 am - 5:00 pm
Sunday 11:00 am - 5:00 pm
NEW -> GreenCoast Hydroponics Long Beach
2405 Mira Mar Ave
Long Beach, CA 90815
Local Number: 562-627-5636
Toll Free 1-877-694-9376
Fax: 562-627-1618
Store Hours:
Monday - Friday 10:00 am - 7:00 pm
Saturday 10:00 am - 7:00 pm
Sunday 12:00 pm - 5:00 pm
GreenCoast Hydroponics Orange
496 W. Meats Avenue
Orange, CA 92865
Local Number: 714-974-4769
Store Hours:
Monday - Friday 10:00 am - 7:00 pm
Saturday 10:00 am - 7:00 pm
GreenCoast Hydroponics Whittier
11510 Whittier Blvd
Whittier, CA 90601
Local Number: 562-699-4201
Store Hours
Monday - Saturday 10:00 am - 7:00 pm
New Guestbook
-
-
lovinhydroponics
Sep 7, 2010 @ 12:15 am | delete
- Very informative lens! Hydroponic grow lights are very essential for the growth of hydroponics plants. Without such lights, the plants grown in hydroponics will not be able to reach their full potential even if they are given the most potent nutrients and minerals. Do not forget that with the method of hydroponics, nutrients actually need the best stimulation from artificial lights in order for them work well and benefit your plants. So always choose the right grow light for the specific stage of your plants' growth to achieve the best benefits.
-
by pdutch
Hello world. This is my bio. I can edit it later!
- 0 featured lenses
- Winner of 3 trophies!
- Top lens »








