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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4Pcs 4Ft Led Grow Light Kits Plant Light Full Spectrum Seed Starting Gardening4Pcs 4Ft Led Grow Light Kits Plant Light Full Spectrum Seed Starting Gardening $74.00 Spider 1000W Fd9600 Led Grow Light 3456Leds 3.1μmol/J Full Spectrum Growing LampSpider 1000W Fd9600 Led Grow Light 3456Leds 3.1μmol/J Full Spectrum Growing Lamp $419.99
Fc-3000 Dimmable Commercial Bar Led Grow Light Lamp for Indoor Plants 4x4ft tentFc-3000 Dimmable Commercial Bar Led Grow Light Lamp for Indoor Plants 4x4ft tent $99.99 Grow Light for Seed Starting with Stand,T5 Grow Lights 1.4Ft,Seed Starter LightGrow Light for Seed Starting with Stand,T5 Grow Lights 1.4Ft,Seed Starter Light $62.92
Phlizon Fd8000 Ba4000 Plant Led Grow Light w/Samsungled Full Spectrum for InoorPhlizon Fd8000 Ba4000 Plant Led Grow Light w/Samsungled Full Spectrum for Inoor $129.98 to Spider 1000W Most Efficient Grow Light Full Spectrum Commercial Indoor Grow LampSpider 1000W Most Efficient Grow Light Full Spectrum Commercial Indoor Grow Lamp $419.59
1000W 640W 240W Led Plant Grow Light barFull Spectrum Indoor Grow Lamp Veg Bloom1000W 640W 240W Led Plant Grow Light barFull Spectrum Indoor Grow Lamp Veg Bloom $99.98 to 60W Led Grow Lights for Seed Starting, 2Ft Hanging Full Spectrum Seedling Lights60W Led Grow Lights for Seed Starting, 2Ft Hanging Full Spectrum Seedling Lights $77.35 to
Phlizon 640W 450W 800W 1000W Full-spectrum Dimmable Led Commercial Grow LightsPhlizon 640W 450W 800W 1000W Full-spectrum Dimmable Led Commercial Grow Lights $167.29 to 40 Cell Seed Starter Kit with Grow Light and Graphene Heating Mat, Reusable Seed40 Cell Seed Starter Kit with Grow Light and Graphene Heating Mat, Reusable Seed $60.39
Versatile 80-Cell Seed Starter Collection with Grow Lights for Home BotanistsVersatile 80-Cell Seed Starter Collection with Grow Lights for Home Botanists $90.22 Seed Starter Tray with Grow Light, 2 Packs 80 Cells Seed Starting Kit, ReusableSeed Starter Tray with Grow Light, 2 Packs 80 Cells Seed Starting Kit, Reusable $51.15
$58.96 Led Grow Lights for Seed Starting with Stand, 2ft 60W Full Spectrum Seedling .Led Grow Lights for Seed Starting with Stand, 2ft 60W Full Spectrum Seedling . $85.58
5 Packs Seed Starter Tray with Grow Light, Elevated Seedling Starter Trays Ki.5 Packs Seed Starter Tray with Grow Light, Elevated Seedling Starter Trays Ki. Plant Lights for Indoor Plants, Grow Lights for Seed Starting Auto On & Off F.Plant Lights for Indoor Plants, Grow Lights for Seed Starting Auto On & Off F. $36.70
T5 Grow Lights for Seed Starting, 16 inches, 2-Count (10W 2 Count (Pack of 1)T5 Grow Lights for Seed Starting, 16 inches, 2-Count (10W 2 Count (Pack of 1) $27.94 Full Spectrum Led Indoor Garden Seed Starting Plant Grow Lights Set of 6Full Spectrum Led Indoor Garden Seed Starting Plant Grow Lights Set of 6 $53.10
Wolezek Grow Lights for Seed Starting with Stand, 2ft T5 144 Leds T5, WhiteWolezek Grow Lights for Seed Starting with Stand, 2ft T5 144 Leds T5, White $59.46 12 Cell Seed Starter Kit with Grow Light and Graphene Heating Mat, Reusable12 Cell Seed Starter Kit with Grow Light and Graphene Heating Mat, Reusable $61.49
Self Watering Seed Starter Kit with Grow Light, 2/6 Pack /72 Cells Seed StarterSelf Watering Seed Starter Kit with Grow Light, 2/6 Pack /72 Cells Seed Starter $43.11 to Phlizon Fd9600 1000W Dimmable Led Commercial Indoor Grow Light Bar Full spectrumPhlizon Fd9600 1000W Dimmable Led Commercial Indoor Grow Light Bar Full spectrum $516.00
Phlizon 2000W Grow Light Samsung Led Full Spectrum Commercial Grow Indoor PlantsPhlizon 2000W Grow Light Samsung Led Full Spectrum Commercial Grow Indoor Plants $174.50 Grow Lights for Indoor Plants 4 Pack T5 Full Spectrum 1ft Led Grow LampGrow Lights for Indoor Plants 4 Pack T5 Full Spectrum 1ft Led Grow Lamp $44.97
5 Packs Seed Starter Tray with Grow Light Elevated Seedling Trays Kits5 Packs Seed Starter Tray with Grow Light Elevated Seedling Trays Kits $25.96 Seed Starter Tray 5 Pack with Grow Light and Humidity Domes for Indoor PlantsSeed Starter Tray 5 Pack with Grow Light and Humidity Domes for Indoor Plants $24.84
Seed Starter Tray with Grow Light 5 Pack 60-Cell Self Watering Seed Starting .Seed Starter Tray with Grow Light 5 Pack 60-Cell Self Watering Seed Starting . $28.24 Grow Lights for Seed Starting with Stand, 2Ft T5 144 Leds Full Spectrum SeedlingGrow Lights for Seed Starting with Stand, 2Ft T5 144 Leds Full Spectrum Seedling $62.97
Seed Starter Tray Kit w/ Grow Light & Humidity Dome – 5 Pack, Indoor UseSeed Starter Tray Kit w/ Grow Light & Humidity Dome – 5 Pack, Indoor Use $27.99 2025 Phlizon 1000W Led Grow Light Samsung281B Commercial Indoor Grow Lamp Uv/Ir2025 Phlizon 1000W Led Grow Light Samsung281B Commercial Indoor Grow Lamp Uv/Ir $439.99
Spider 1000W SamsungLed Grow Light Full Spectrum Co2 Commercial Plant Veg FlowerSpider 1000W SamsungLed Grow Light Full Spectrum Co2 Commercial Plant Veg Flower $419.90 Foldable 450W Led Grow Light Full Spectrum Dimmable Commercial Indoor Veg BloomFoldable 450W Led Grow Light Full Spectrum Dimmable Commercial Indoor Veg Bloom $175.91 to
joyhalo 40 Cell Seed Starter Kit with Grow Light and Graphene Heating Mat, Rejoyhalo 40 Cell Seed Starter Kit with Grow Light and Graphene Heating Mat, Re $69.99 Phlizon Fd9600 Grow Light 1000w Full Spectrum Lamp for Indoor Plant Veg FlowerPhlizon Fd9600 Grow Light 1000w Full Spectrum Lamp for Indoor Plant Veg Flower $299.67 to
8Bars 640W Replaces Fluence Gavita 1700e Led Foldable Bar Grow Light Plant Lamp8Bars 640W Replaces Fluence Gavita 1700e Led Foldable Bar Grow Light Plant Lamp $299.58 5Pcs Seed Starter Trays with Grow Light Seed Growing Starting Germination Trays5Pcs Seed Starter Trays with Grow Light Seed Growing Starting Germination Trays $21.99
Comprehensive 5 Pcs Seed Starting Kit with Full-Spectrum Grow Light & Vent DomeComprehensive 5 Pcs Seed Starting Kit with Full-Spectrum Grow Light & Vent Dome $45.99 T5 Grow Lights for Seed Starting, 16 in Long, 2-Count (10W X2) Full Spectrum LedT5 Grow Lights for Seed Starting, 16 in Long, 2-Count (10W X2) Full Spectrum Led $30.60
Seed Starter Tray with Grow Light, 2 Packs 80 Cells Seed Starting Kit Seedling SSeed Starter Tray with Grow Light, 2 Packs 80 Cells Seed Starting Kit Seedling S $56.99 1000W Spider Led Grow Light Full Spectrum Co2 Commercial for Indoor Hydroponics1000W Spider Led Grow Light Full Spectrum Co2 Commercial for Indoor Hydroponics $419.49
10 Packs Seed Starter Tray with Elevated Lid, 120 Cells Thicken Seed Starting Tr10 Packs Seed Starter Tray with Elevated Lid, 120 Cells Thicken Seed Starting Tr $16.97 T5 Grow Lights for Seed Starting, 16 inches, 2-Count (10W x2) Full Spectrum L.T5 Grow Lights for Seed Starting, 16 inches, 2-Count (10W x2) Full Spectrum L. $29.60
Grow Lights for Seed Starting with Stand, 2ft T5 144 Leds Full SpectrumGrow Lights for Seed Starting with Stand, 2ft T5 144 Leds Full Spectrum $57.71 4-Pack Seed Starter Kit with Adjustable Grow Lights & 2 Heat Mats – 5'4-Pack Seed Starter Kit with Adjustable Grow Lights & 2 Heat Mats – 5' $85.81
Grow Lights for Seed Starting 16" Full Spectrum 6500K with Timer 2 PackGrow Lights for Seed Starting 16" Full Spectrum 6500K with Timer 2 Pack $30.75
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Prices current as of last update, 06/25/25 11:44am.

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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