Dual spectrum compact fluorescent grow light. Actual length is about 40cm.Incandescent lightbulb
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Grow Lights

A Grow light is an electric lamp designed to promote plant growth by emitting an electromagnetic spectrum appropriate for photosynthesis. It emits a light spectrum similar to that from the sun, allowing indoor growth with outdoor conditions. more...

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Different light spectrums are used for the different stages of plant growth. The initial vegetative stage requires blue spectrum of light, whereas the later 'flowering' stage is usually done with red/orange spectrums. The lights can be bought by spectrum colour specifically, or some companies such as Sylvania Grolux produce a full spectrum bulb which caters for all stages of growth.

The light is usually used in conjunction with a reflector, to control and intensify the light emissions, and will include an electrical ballast to control the flow of current flowing to the light. This is required because of the high intensity of the light that is necessary to produce something akin to sunlight.

Lamp types used as grow lights include high-intensity discharge lamps, fluorescent lamps and LEDs. Grow lights are most used for indoor gardening, including indoor hydroponics and aquatic plants.

The most widely used lights for professional indoor flower and vegetable growing are HPS/SON (high pressure sodium) and MH (metal halide). These are types of HID or high-intensity discharge lamps.

The bigger the plant gets the more light it requires; if there is not enough light, a plant will not grow, regardless of other conditions.

For indoor gardening one of the most important topics is light density, measured in lux. Light density is the amount of light incident on a surface. One lux equals one lumen (unit) of light falling on an area of one square meter. A brightly lit office would be illuminated at about 400 lux. In Imperial (pounds-feet) terms, a foot-candle, or the intensity of a standard candle on an area of 1 square foot, is about 10.76 lux.

Cool white fluorescent lamps are sometimes used as grow lamps. These offer slightly lower performance, a white light, and lower purchase cost.

Read more at Wikipedia.org


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Ltl 200474 4 Burner Co2 Generator Hydroponics Growing Controller High AltitudeLtl 200474 4 Burner Co2 Generator Hydroponics Growing Controller High Altitude $329.99 List price:  Previous Price $379.95 Ez Clone Rooting Compound Propagation Root Cloning Hydroponics 8 ozEz Clone Rooting Compound Propagation Root Cloning Hydroponics 8 oz $35.39
Captain Jack's Deadbug Brew Concentrate 16 oz 1 Pint BonideCaptain Jack's Deadbug Brew Concentrate 16 oz 1 Pint Bonide $23.68 Hydrofarm Extension Cord - 120v - 12 ft.Hydrofarm Extension Cord - 120v - 12 ft. $24.48
19" Electric Hydroponic Pro Bowl Trimmer Electric Leaf Bud Trim Reaper Cutter19" Electric Hydroponic Pro Bowl Trimmer Electric Leaf Bud Trim Reaper Cutter $239.99 240x240x200 cm Hortosol Grow Tent Indoor Box 2.4 x 2.4 x 2 m Mylar Home & Room240x240x200 cm Hortosol Grow Tent Indoor Box 2.4 x 2.4 x 2 m Mylar Home & Room $401.49
iPower 1/8 Inch 8-Feet Long Heavy Duty Adjustable Rope Clip Hanger 150lb Capa.iPower 1/8 Inch 8-Feet Long Heavy Duty Adjustable Rope Clip Hanger 150lb Capa. $6.62 Bluelab pH Pen Blue Lab - Hydroponic Aquarium pH Meter- MonitorBluelab pH Pen Blue Lab - Hydroponic Aquarium pH Meter- Monitor $79.59
General Hydroponics (2) Gallons of FloraGro Liquid Plant Growth Formula | Gh1423General Hydroponics (2) Gallons of FloraGro Liquid Plant Growth Formula | Gh1423 $50.99 List price:  Previous Price $104.99 Bloom Brothers Ggwr06 Hydro Halo Water Ring 6-Inch with 3 leg supportBloom Brothers Ggwr06 Hydro Halo Water Ring 6-Inch with 3 leg support $10.85
Dyna-Gro Pure Neem Oil Natural Leaf Polish 8 OuncesDyna-Gro Pure Neem Oil Natural Leaf Polish 8 Ounces $14.39 5'x30' Trellis Netting5'x30' Trellis Netting $6.99
2 Hydrofarm Gmper50L Super Coarse Perlite Soil Aeration Volcanic Rock Bags -100L2 Hydrofarm Gmper50L Super Coarse Perlite Soil Aeration Volcanic Rock Bags -100L $64.99 List price:  Previous Price $129.99 Hash Bag 10 Gallon 5 Bubble Bag Herbal Oil Extraction Kit Pressing Screen in CarHash Bag 10 Gallon 5 Bubble Bag Herbal Oil Extraction Kit Pressing Screen in Car $17.50
Remo Nutrients Roots Gel 7 Gram Rooting compound 1/4 oz. .25Remo Nutrients Roots Gel 7 Gram Rooting compound 1/4 oz. .25 $6.89 Advanced Nutrients Big Bud 250Ml Hydroponic Flower BoosterAdvanced Nutrients Big Bud 250Ml Hydroponic Flower Booster $23.16
Garden Insect Spray with Spinosad Concentrate for Outdoor Lawn Ornamental 16ozGarden Insect Spray with Spinosad Concentrate for Outdoor Lawn Ornamental 16oz $22.54 Floating yo-yo hangerFloating yo-yo hanger $15.00
Interlube International Opti-4 43024 Single Sae 30 20 Ounce 4-Cycle Engine LubriInterlube International Opti-4 43024 Single Sae 30 20 Ounce 4-Cycle Engine Lubri $20.97 Lightweight Grey Grommet Tarp Tabs for use with all tarps & plastic sheetsLightweight Grey Grommet Tarp Tabs for use with all tarps & plastic sheets $4.00
Greenease Jute Microgreen Hydroponic Grow Pads - 10 Pack- Fits 10X10 Standard NuGreenease Jute Microgreen Hydroponic Grow Pads - 10 Pack- Fits 10X10 Standard Nu $16.01 Hydrofarm Precision Pruner Spring Pack of 10 - replacement springs sciccorsHydrofarm Precision Pruner Spring Pack of 10 - replacement springs sciccors $6.26
Mylar Reflective Film Roll Plants Garden Greenhouse Covering Foil Sheets 2 MilMylar Reflective Film Roll Plants Garden Greenhouse Covering Foil Sheets 2 Mil $27.36 10 Large Mushroom Grow Bags10 Large Mushroom Grow Bags $9.95
Mars 600W Led Grow Light Full Spectrum for Indoor Hydro Veg Flower Grow PanelMars 600W Led Grow Light Full Spectrum for Indoor Hydro Veg Flower Grow Panel $103.50 300x300x200 cm Hortosol Grow Tent Indoor Box 3 x 3 x 2 m Mylar Dark Home & Room300x300x200 cm Hortosol Grow Tent Indoor Box 3 x 3 x 2 m Mylar Dark Home & Room $527.98
All Per Plus Gallon Leaf Wash 100% Organic Spider Mites Powdery Mildew AphidsAll Per Plus Gallon Leaf Wash 100% Organic Spider Mites Powdery Mildew Aphids $36.99 2 Pack 19-bulb High Intensity Led Green Light Grow Room Headlight2 Pack 19-bulb High Intensity Led Green Light Grow Room Headlight $17.95
iPower Glbbag5X8 5-Gallon 8-Bag Herbal Ice Bubble Hash Bag Essense Extractor KitiPower Glbbag5X8 5-Gallon 8-Bag Herbal Ice Bubble Hash Bag Essense Extractor Kit $36.86 New Bucket Lids fit 5 and 3.5 Gallon Buckets Black Plastic (10 Pack) HydroponicsNew Bucket Lids fit 5 and 3.5 Gallon Buckets Black Plastic (10 Pack) Hydroponics $29.95
Straight Blade Trimming Scissors Hydroponics Leaf Bud Sharp harvest trimmerStraight Blade Trimming Scissors Hydroponics Leaf Bud Sharp harvest trimmer $3.99 1 Gallon 8 Bubble Bag Herbal Oil Extraction Kit Pressing Screen Color Size Set1 Gallon 8 Bubble Bag Herbal Oil Extraction Kit Pressing Screen Color Size Set $27.99
Grower's Edge - Block Covers 4 in & 6 in - Reduce Algea, Nats & Mold on RockwoolGrower's Edge - Block Covers 4 in & 6 in - Reduce Algea, Nats & Mold on Rockwool $10.96 to $16.95 General Hydroponics (2) Gallons of FloraBloom Liquid Plant Grow Formula | Gh1433General Hydroponics (2) Gallons of FloraBloom Liquid Plant Grow Formula | Gh1433 $49.99 List price:  Previous Price $99.99
Vivosun 6 Mil Mylar Film Roll 4 Ft X 10 Ft Diamond Film Foil Roll Highly Refl.Vivosun 6 Mil Mylar Film Roll 4 Ft X 10 Ft Diamond Film Foil Roll Highly Refl. $25.78 Black Dog Led Grow Glasses Horticulture Grow Light Room Glasses PhytoMax Spec.Black Dog Led Grow Glasses Horticulture Grow Light Room Glasses PhytoMax Spec. $430.76
8" Triple X2 Hyrdoponic Herbal Grow Light Hps Mh Reflector, TripleX2 1297238" Triple X2 Hyrdoponic Herbal Grow Light Hps Mh Reflector, TripleX2 129723 $189.99 List price:  Previous Price $292.99 Captain Jack's Deadbug Brew Concentrate, 32 oz 1 Quart BonideCaptain Jack's Deadbug Brew Concentrate, 32 oz 1 Quart Bonide $32.27
Bluelab pH Pen Measure pH Temperature Hydroponics Aquariums Lcd MonitorBluelab pH Pen Measure pH Temperature Hydroponics Aquariums Lcd Monitor $74.00 New 100X Magnifying Loupe/Glass Illuminated Microscope with Led light adjustableNew 100X Magnifying Loupe/Glass Illuminated Microscope with Led light adjustable $13.91
19" Cut Hand Spin Bowl Bud Trimmer Tumbler Leave Flower Magic Hydroponic Trim19" Cut Hand Spin Bowl Bud Trimmer Tumbler Leave Flower Magic Hydroponic Trim $198.65 Funk Fighter Extra Large Xl Gym Bag Odor Smell Trapping Charcoal Carbon LiningFunk Fighter Extra Large Xl Gym Bag Odor Smell Trapping Charcoal Carbon Lining $84.34
Bluelab Replacement *Soil* pH Electrode Probe - combo meter monitor blackBluelab Replacement *Soil* pH Electrode Probe - combo meter monitor black $69.99 Funk Fighter Large Gym Bag Odor Smell Trapping Charcoal Carbon LiningFunk Fighter Large Gym Bag Odor Smell Trapping Charcoal Carbon Lining $69.99
Ideal-Air 736422 Duct Coupler, 10"Ideal-Air 736422 Duct Coupler, 10" $14.72 16" Bowl Trimmer Stainless Hydroponics Leaf Plant Bud Spin w/Wire blades16" Bowl Trimmer Stainless Hydroponics Leaf Plant Bud Spin w/Wire blades $115.99
Sunleaves 3/4" Barbed Tee connectors 10 PackSunleaves 3/4" Barbed Tee connectors 10 Pack $8.99 Leaf Bud 18" Trimmer Sturdy Construction Stainless Steel Triple Cutter BladeLeaf Bud 18" Trimmer Sturdy Construction Stainless Steel Triple Cutter Blade $296.65
(2) Hydrofarm Hydroponic Seed Heat Mat Digital Temperature Controllers | Mtprtc(2) Hydrofarm Hydroponic Seed Heat Mat Digital Temperature Controllers | Mtprtc $60.99 List price:  Previous Price $144.99 Agrobrite T5 216W 4' 4-Tube Grow Light Fixture w/ Fluorescent Lamps | Flt44Agrobrite T5 216W 4' 4-Tube Grow Light Fixture w/ Fluorescent Lamps | Flt44 $119.99 List price:  Previous Price $224.99
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Prices current as of last update, 03/19/18 3:28pm.

See also...
Grow Light, Grow Lights, Hydroponics & Seed Starting, Gardening & Plants
Grow Light Hps, Grow Lights, Hydroponics & Seed Starting, Gardening & Plants

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