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Lighting to aid plant growth
A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide
Grow_light
most sophisticated examples are totally enclosed, and contain a built-in grow light, intake and exhaust fan system for ventilation, a hydroponics system that
Grow_box
Device for producing light from electricity
An electric light, lamp, or light bulb is an electrical device that produces light from electricity. It is the most common form of artificial lighting
Electric_light
World's longest-lasting light bulb
The Centennial Light is an incandescent light bulb recognized as the oldest known operating light bulb. It was first illuminated in 1901, and has only
Centennial_Light
Process of planting, growing and harvesting cannabis
temporarily. Sun light or grow light can be used. Under artificial light, the plant typically remains under a regime of 16–24 hours of light and 0–8 hours
Cannabis_cultivation
Device producing regular flashes of light
A strobe light or stroboscopic lamp, commonly called a strobe, is a device used to produce regular flashes of light. It is one of a number of devices that
Strobe_light
Deliberate use of light to achieve practical or aesthetic effects
deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as
Lighting
Electrical device with an electric lamp
A light fixture (US English), light fitting (UK English) or luminaire is an electrical lighting device containing one or more light sources, such as light
Light_fixture
agricultural lighting including grow lights. A CMH light was first exhibited by the Thorn Lighting Group in 1981 at the Hannover World Light Fair, and the first commercial
Ceramic_metal-halide_lamp
Type of lightbulb
Edison light bulbs, also known as filament light bulbs and retroactively referred to as antique light bulbs or vintage light bulbs, are either carbon-
Edison_light_bulb
Lager by Braxton Brewing Company
valued at US$200 million. As of July 2026, Garage Beer is the fastest growing light lager in the United States. In June, 2025 it was announced that Garage
Garage_Beer
Decorative lamp
glass vessel. The vessel is placed on a lamp base with an incandescent light bulb. The heat causes temporary reductions in the wax's density and the
Lava_lamp
Devices and processes that produce light
sources of light, the visible part of the electromagnetic spectrum. It focuses on primary light sources (which emit light) rather than secondary light sources
List_of_light_sources
Flashlight used in conjunction with a firearm
A tactical light or weapon light is a flashlight used in conjunction with a firearm to aid low-light target identification, allowing the user to simultaneously
Tactical_light
Type of stage lighting once used in theatres and music halls
Limelight (also known as Drummond light or calcium light) is a non-electric type of stage lighting that was once used in theatres and music halls. An intense
Limelight
Carbon arc lamp
A Klieg light is an intense carbon arc lamp especially used in filmmaking. It is named after inventor John Kliegl and his brother Anton Kliegl. Klieg
Klieg_light
Light fixture that emits long-wave ultraviolet light and very little visible light
called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light. One type of
Blacklight
Lamp that produces light by an electric arc
An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between
Arc_lamp
Daily total of photosynthetic light per area
and more in roots. They grow faster, per unit leaf area (ULR) and per unit total plant mass (RGR), and therefore high-light grown plants generally have
Daily_light_integral
Lighting fixture set into a ceiling or similar overhead surface
A recessed light or downlight (also pot light in Canadian English, sometimes can light (for canister light) in American English) is a light fixture that
Recessed_light
Oil or ghee-based lamp used in religious rituals of Indian origin
enlightenment, prosperity, knowledge and wisdom. Diyas represent the triumph of light over dark, good over evil with the most notable example of this being on
Diya_(lamp)
plasma grow-light for the horticulture and hydroponics markets that delivers the blue-light, UV-A and UV-B missing from most available grow-light spectrums
Ceravision
Type of gravity-powered lamp used for third world countries
GravityLight was a gravity-powered lamp manufactured until 2019. It was designed by the company Deciwatt for use in developing or third-world nations
GravityLight
Lights on a vehicle indicating position, heading, and status
A navigation light, also known as a running or position light, is a source of illumination on a watercraft, aircraft or spacecraft, meant to give information
Navigation_light
Brand of paraffin lamp
products for camping and outdoor use. Petromax is reliable and efficient light source but only with proper use and well maintained. Typical problems leading
Petromax
Bubbling decorative light
A bubble light is a decorative device consisting of a liquid-filled vial that is heated and illuminated by an incandescent light bulb. Because of the
Bubble_light
Estonian indoor gardening company
In 2013, Click and Grow used Kickstarter to raise $625,000 for a Smart Herb Garden, which included an LED grow light, and could grow three plants at once
Click_and_Grow
Japanese anime television series
Grow Up Show: Sunflower Circus is an original anime television series produced by A-1 Pictures and Psyde Kick Studio. It is directed by Kanta Kaimei, featuring
Grow_Up_Show
Electric light that produces light using LEDs
An LED lamp or LED light is an electric light that produces light using light-emitting diodes (LEDs). LED lamps are significantly more energy-efficient
LED_lamp
Optical and electrical phenomenon
material emits light in response to the passage of an electric current or to a strong electric field. This is distinct from black body light emission resulting
Electroluminescence
Type of electric gas-discharge lamp
is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps
Sodium-vapor_lamp
Form of transistor that emits light
A light-emitting transistor or LET is a form of transistor that emits light. Higher efficiency than light-emitting diode (LED) is possible.[citation needed]
Light-emitting_transistor
Portable hand-held electric light
electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since
Flashlight
Intense focused beam lamp for improving visual detection
lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction. It is usually
Searchlight
Oil lamp with a gravity feed
introduced to Thomas Jefferson in Paris in 1784 and according to him gave off "a light equal to six or eight candles." These new lamps, much more complex and costly
Argand_lamp
Raised source of light beside a road or path
A street light, light pole, lamp pole, lamppost, streetlamp, light standard, or lamp standard is a raised source of light on the edge of a road or path
Street_light
Popular type of Japanese literature genre
Miyamoto, Shigeyori (30 November 2011). "Publishing heavyweights see light in growing 'light novel' market". The Asahi Shimbun AJW. The Asahi Shimbun Company
Light_novel
Artistic light bulb manufacturer
Aerolux Light Corporation was a manufacturer of artful gas-discharge light bulbs from the 1930s through the 1970s. Aerolux made these bulbs in a factory
Aerolux_Light_Corporation
Electric lighting using rarefied gas
colored light. The color of the light depends on the gas in the tube. Neon lights were named for neon, a noble gas which gives off a popular orange light, but
Neon_lighting
Self-contained, short-term light source
stick, also known as a light stick, chem light, light wand, light rod, and rave light, is a self-contained, short-term light source. It consists of a
Glow_stick
Practical physics application
Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called
Light-emitting_diode_physics
Stick with a flaming end used as a source of light
is a stick with combustible material at one end which can be used as a light source or to set something on fire. Torches have been used throughout history
Torch
Small light fixture used to provide dim illumination during the night
A nightlight is a small light fixture, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times
Nightlight
Retail store selling equipment for growing plants indoors
hydroponics systems and products. In a grow shop there are products for indoor growing of plants, including: lamps/light bulbs, ventilation fans, pollinators
Grow_shop
Spontaneous emission of light by a substance
be simply defined as any emission of visible electromagnetic radiation (light) not ascribable directly to incandescence. Incandescence emerges at high
Luminescence
Property used for marijuana cultivation
A grow house is a property, usually located in a suburban residential neighbourhood, that is primarily used for the black market production of marijuana
Grow_house
Small-scale cultivation of plants
Forest gardening Genetically modified trees Genomics of domestication Grow light Hoe-farming Horticultural flora Horticultural oil Horticultural therapy
Horticulture
Light source using an electric arc through mercury vapor
gas-discharge lamp that uses an electric arc through vaporized mercury to produce light. The arc discharge is generally confined to a small fused quartz arc tube
Mercury-vapor_lamp
Acetylene-burning lamps
and thus the amount of light it produces. This type of lamp generally has a reflector behind the flame to help project the light forward. An acetylene
Carbide_lamp
Candle made by dipping a rush in fat or grease
grease. For several centuries, rushlights were a common source of artificial light for poor people throughout the British Isles. They were extremely inexpensive
Rushlight
Light mast is a tall lighting specified[clarification needed] mast, which has several big searchlights on top of it. Light masts illuminates large areas
Light_mast
Incandescent lamp variety
inner surface of the bulb, causing the bulb to blacken and the filament to grow increasingly weak until it eventually breaks. The presence of the halogen
Halogen_lamp
Portable lighting device
enclosure for the light source – historically usually a candle, a wick in oil, or a heated mesh, and often a battery-powered light in modern times – to
Lantern
Light focused on a particular area or object
lighting focuses light on a particular area or object. It is often used to highlight art or other artifacts. Common types of light fixtures used for
Accent_lighting
Fluorescent lamps with folded tubes, often with built-in ballast
compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types
Compact_fluorescent_lamp
Semiconductor light source
camera flashes, lighted wallpaper, horticultural grow lights, and medical devices. LEDs have many advantages over incandescent light sources, including
Light-emitting_diode
Decorative lighting used at Christmastime
Christmas trees were decorated with candles, which symbolized Christ being the light of the world. The Christmas trees were brought by Christians into their
Christmas_lights
Property of light sources related to black-body radiation
is a parameter describing the color of a visible light source by comparing it to the color of light emitted by an idealized opaque, non-reflective body
Color_temperature
Human-powered flashlight
from the winding flows through the filament of an incandescent light bulb, giving off light. An L-shaped spring returns the handle to its original position
Mechanically powered flashlight
Mechanically_powered_flashlight
Types of lighting device which burn gas fuel
Gas lighting is the production of artificial light by burning a fuel gas. Light may be produced directly by the flame or indirectly by heating another
Gas_lighting
Use of gaseous tritium to create visible light
hydrogen, to create visible light. Tritium emits electrons through beta decay and, when they interact with a phosphor material, light is emitted through the
Tritium_radioluminescence
Outdoor light fixture
A yard light or garden lantern is a free standing exterior light fixture in gardens and landscaped settings. They are usually illuminated by electricity
Yard_light
Form of illumination
artificial source of light. When artificial, the back light is usually placed directly behind the subject in a 4-point lighting setup. A back light, which lights
Backlighting (lighting design)
Backlighting_(lighting_design)
Wick embedded in solid flammable substance
wax, or another flammable solid substance such as tallow, that provides light, and in some cases, a fragrance. A candle can also provide heat or a method
Candle
Type of electrode and part of cold cathode fluorescent lamp
led to the discovery of the electron. Neon lamps are used both to produce light as indicators and for special-purpose illumination, and also as circuit
Cold_cathode
Pyrotechnic light source
A flare is a type of pyrotechnic that produces a bright light or intense heat without an explosion. Flares are used for distress signaling, illumination
Flare
2026 action-adventure video game
"cool uncle figure" he viewed the character as when growing up. The musical score for 007 First Light was composed by the Flight. IO Interactive felt that
007_First_Light
Decorative electrical device
insulator, giving the appearance of multiple constant beams of colored light. Plasma balls were popular as novelty items in the 1980s. The plasma lamp
Plasma_globe
Medium used for the cultivation of fungi
Malt extraxt agar Sigma-Aldrich Malt extract agar https://ezmushroom.com/grow/light-malt-extract-lme-agar-recipe/ BAM Media M93: Malt Extract Agar from the
Malt_extract_agar
Ultraviolet C light-emitting device
or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing, causing
Germicidal_lamp
Electroluminescent light source
(FIPEL) technology is a low power electroluminescent light source. Three layers of moldable light-emitting polymer blended with a small amount of carbon
Field-induced polymer electroluminescent technology
Field-induced_polymer_electroluminescent_technology
Room for growing plants under controlled conditions
Aeroponics Dark photosynthesis Hydroponics Fogponics Grow box Grow shop Water chiller Hydroponic dosers "The light fantastic: Indoor farming may be taking root"
Growroom
Type of lamp
used for indoor growing applications, specifically cannabis, and were quite popular with reef aquarists who needed a high intensity light source for their
Metal-halide_lamp
Light ergonomics is the relationship between the light source and the individual. Poor light can be divided into the following: Individual or socio-cultural
Light_ergonomics
Metal cup or basket used as a beacon
pitch, a rope steeped in rosin or something flammable. They are burned as a light or beacon. Cressets mounted on the walls of Renaissance palaces in Italy
Cresset
Raised light sources which are powered by solar panels
Solar street lights are raised light sources which are powered by solar panels generally mounted on the lighting structure or integrated into the pole
Solar_street_light
Emission of light as a result of a chemical reaction
the emission of light (luminescence) as the result of a chemical reaction, i.e. a chemical reaction resulting in a flash or glow of light. A standard example
Chemiluminescence
Bioreactor with a light source to grow photosynthetic microorganisms
any cultivation system designed for growing photoautotrophic organisms using artificial light sources or solar light to facilitate photosynthesis. Photobioreactors
Photobioreactor
Type of electric lamp
halogen lamp within a quartz or hard glass envelope. A PAR lamp consists of a light source, with lens and a parabolic reflector with a smooth aluminium surface
Parabolic aluminized reflector
Parabolic_aluminized_reflector
LED lamp with visible filaments
filament light bulb is a LED lamp which is designed to resemble a traditional incandescent light bulb with visible filaments for aesthetic and light distribution
LED_filament
Lighting system
is a highly efficient full-spectrum electrodeless lighting system whose light is generated by sulfur plasma that has been excited by microwave radiation
Sulfur_lamp
English rock band
Electric Light Orchestra (ELO) are an English rock band formed in Birmingham in 1970 by multi-instrumentalists Jeff Lynne and Roy Wood and drummer Bev
Electric_Light_Orchestra
Agriculture planting strategy
prior to planting outside. It allows someone who doesn't have the room, a grow light setup, nor the window space available indoors to start seeds successfully
Winter_sowing
Compact astronomical body
gravitational time dilation. Light from the collapsing material takes longer and longer to reach the observer, with the delay growing to infinity as the emitting
Black_hole
Light with frequencies ranging from infrared to near-ultraviolet
to grow and aids in the health of the fish and the tank as a whole. While plants have adapted to the reception of real sunlight, full spectrum light bulbs
Full-spectrum_light
Internet Archive. Riegel, Kurt W. (March 30, 1973). "Light Pollution: Outdoor lighting is a growing threat to astronomy" (PDF). Science. 179 (4080): 1285–1291
History of street lighting in the United States
History_of_street_lighting_in_the_United_States
Overview of and topical guide to cannabis
Supercritical fluid extraction (CO2) Indoor production Aeroponics Grow house Grow light Hydroponics Hemp in the United States Hemp in Kentucky Hemp in North
Outline_of_cannabis
Growing plants without soil using nutrients in water
solutions in an artificial environment. Terrestrial or aquatic plants may grow freely with their roots exposed to the nutritious liquid or the roots may
Hydroponics
Template placed in front of a light source to shape the emitted light
gobo is an object placed inside or in front of a light source to control the shape of the emitted light and its shadow. For studio photography purposes
Gobo_(lighting)
Gas-discharge lamp using induction to excite the gas inside
an electric or magnetic field transfers the power required to generate light from outside the lamp envelope to the gas inside. This is in contrast to
Induction_lamp
Types of lamp
to filter out most visible light, commonly used in nightclubs. Other non-standard designations apply for plant lights or grow lights. This section lists
Fluorescent-lamp_formats
Effect of artificial light on ecosystems
Ecological light pollution is the effect of artificial light on individual organisms and on the structure of ecosystems as a whole. The effect that artificial
Ecological_light_pollution
Instrument used to study object movement
or a lamp such as a flashtube which produces brief repetitive flashes of light. Usually, the rate of the stroboscope is adjustable to different frequencies
Stroboscope
Ecological terminology
In ecology, a light gap is a break in forest canopy or similar barrier that allows young plants to grow where they would be otherwise inhibited by the
Light_gap
Device that emits light to illuminate performers
performances taking place in live performance venues. They are also used to light television studios and sound stages. Many stagecraft terms vary between
Stage_lighting_instrument
Type of electrodeless gas-discharge lamp
frequency electric field. Modern plasma lamps are a family of light sources that generate light by exciting plasma inside a closed transparent burner or bulb
Plasma_lamp
Horticultural society
(Volume 1 ed.). Chicago: Century Publishing and Engraving Company. pp. 431–432. Retrieved 24 July 2022. Official Website LED Grow Light Entry on Mnopedia
Minnesota State Horticultural Society
Minnesota_State_Horticultural_Society
writer and director, best known for Son (2021), The Canal (2014) and Never Grow Old (2019). He was born in Dublin, Ireland. His second feature film The Solution
Ivan_Kavanagh
Types of cold cathode lamp
(e.g. for atomic absorption spectrometers) and as a frequency tuner for light sources such as lasers. An HCL takes advantage of the hollow cathode effect
Hollow-cathode_lamp
Use of a light source to simulate sunlight
Artificial sunlight is the use of a light source to simulate sunlight where the unique characteristics of sunlight are needed, but where sufficient natural
Artificial_sunlight
travel, tourism, insurance
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