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 Aquarium WaterProof LED Moon Light 18 LEDs 1 ft Strip 100 Lumens 12 inch + Power $9.95 Time Remaining: 25d 7h 49m Buy It Now for only: $9.95 |
 AquaticLife 48 Expandable BLUE LED Light Fixture for Aquarium 9 03 $96.52 (18 Bids) Time Remaining: 3h 11m |
 LED Light Hood Aquarium Freshwater Tropical Fish Single Bright Lunar 48 120 cm $69.95 Time Remaining: 1d 21h 24m Buy It Now for only: $69.95 |
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 KollerCraft AQUARIUS AquaView 360 Aquarium Kit with LED Light 2 Gallon $36.84 Time Remaining: 15d 17h 42m Buy It Now for only: $36.84 |
 Universal Fish Tank Water Aquarium 12 LED White up Air Bubble Beaming Lights 12 $0.69 Time Remaining: 34m |
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 36 40 LED Aquarium Light Freshwater Tropical Fish Single Bright 90 100 cm $49.95 Time Remaining: 19d 17h 27m Buy It Now for only: $49.95 |
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 36 39 Aquarium LED Light Lunar Bright Fish Tank NEW $45.99 Time Remaining: 7h 46m Buy It Now for only: $45.99 |
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 225 BLUE + WHITE LED AQUARIUM PLANT GROW LIGHT PANEL US $34.90 Time Remaining: 5d 7h 19m Buy It Now for only: $34.90 |
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 EVO 48 LED Aquarium Light Coral Reef Saltwater 32x 3W 3 Watts Lunar 120 cm $128.95 (1 Bid) Time Remaining: 3h 32m |
 60cm 30 SMD LED Car Van Flexible Neon Grill Strip Light Lamp 12V Waterproof New $2.29 Time Remaining: 28d 9h 56m Buy It Now for only: $2.29 |
 EVO 48 LED Aquarium Light Coral Reef Saltwater 32x 3W 3 Watts Lunar 120 cm $129.95 Time Remaining: 3h 38m |
 LED Clip 06 Aquarium Light Freshwater Bright Nano Pico Lunar Tropical Fish Betta $28.95 Time Remaining: 8d 14h 16m Buy It Now for only: $28.95 |
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 LED 48 3300 Aquarium Light Marine Bright FOWLR Cichlid 54x 1 Watt Lunar 120 cm $122.50 (5 Bids) Time Remaining: 3h 22m |
 120 Watt Aquarium Coral Reef LED Grow Light 120W $152.89 Time Remaining: 8d 4h 23m Buy It Now for only: $152.89 |
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 T5 Quad 36 Timer Aquarium Light Strip Marine Reef Coral Cichlid 156W LED Fan HO $109.95 Time Remaining: 17d 14h 39m Buy It Now for only: $109.95 |
 2 Mode Fish Aquarium 28 LED Blue White 2W AQUARIUM LAMP LIGHTS $15.99 Time Remaining: 26d 10h 55m Buy It Now for only: $15.99 |
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 TaoTronics 120W Aquarium Coral Reef Tank White Blue LED Grow Light White $158.88 Time Remaining: 10d 4h 24m Buy It Now for only: $158.88 |
 Fish Tank Aquarium Submersible Blue flash LED Bubble Air Curtain Light Lighting $0.35 Time Remaining: 1h 7m |
 4 Aquarium LED Bar Light Fish Tank Moonlight Blue NEW $11.99 Time Remaining: 12d 8h 42m Buy It Now for only: $11.99 |
 Aquarium Coral Reef Tank black Blue LED Grow Light 120W $155.68 Time Remaining: 15d 6h 25m Buy It Now for only: $155.68 |
 181in 46cm 18 LED Coloful Aquarium Fish Tank Bubble LED Underwater Light Hot $1.44 Time Remaining: 1h 2m |
 4 LED POND FOUNTAIN POOL LIGHT WITH FOUR COLOR LENS $49.99 Time Remaining: 6d 23h 25m Buy It Now for only: $49.99 |
 65in 165cm 6 LED Colorful Aquarium Fish Tank Air Tube Bubble Light Underwater $0.11 Time Remaining: 50m |
 2 Style Choose 120 Watt Aquarium Coral Reef Tank LED Grow Light 120W $161.49 Time Remaining: 15d 8h 9m Buy It Now for only: $161.49 |
 Aquarium Moon Light WaterProof LED Lighting Strip SMD 3528 300 LEDs 20 ft BLUE $27.95 Time Remaining: 3d 8m Buy It Now for only: $27.95 |
 310MM 12 LEDs Aquarium Fish Tank Pond Submersible Bubble Lights $1.56 Time Remaining: 57m |
 Green Yellow Blue Red White Submersible 24 LED Aquarium Fish Tank Light Strip $3.79 Time Remaining: 2d 4h 9m Buy It Now for only: $3.79 |
 EVO 24 LED Aquarium Light Coral Reef Saltwater Nano 16x 3W 3 Watts Lunar 60 cm $95.95 Time Remaining: 3h 43m Buy It Now for only: $105.95 |
 T5 Quad 48 Timer 6500K Aquarium Light Freshwater Discus Plant 216W LED Fan Legs $125.95 Time Remaining: 27d 15h 23m Buy It Now for only: $125.95 |
 48 LED 8 Blue + 40 White Fit 30 50cm Long Fish Tank Aquarium Lamp Light lighting $0.46 Time Remaining: 1h 16m |
 Aquarium Coral Reef Tank White Blue LED Grow Light 120W Black or White Casing $152.89 Time Remaining: 11d 5h 19m Buy It Now for only: $152.89 |
 Aquarium LED Bar Light Fish Tank Moonlight Blue 46cm $19.99 Time Remaining: 9d 11h Buy It Now for only: $19.99 |
 Amazing Bright White Aqaurium Fish Tank Beam Bubble Up Air Luminous 12 LED Light $1.19 Time Remaining: 1h 22m |
 Salt Water Aquarium Reef Fish Tank BLUE Lighting LED Strip 250 Lumens Ft Moon $38.95 Time Remaining: 11d 2h 31m Buy It Now for only: $38.95 |
 LED Clamp 1W 6500K Aquarium Light Freshwater Plant Tropical Fish Nano Pico Betta $36.95 Time Remaining: 3h 36m |
 MH ADV 48 Metal Halide Light T5 Lighting Aquarium Reef Marine Coral 716W LED $299.00 Time Remaining: 9d 2h 59m Buy It Now for only: $299.00 |
 LED Clamp 1W 6500K Aquarium Light Freshwater Plant Tropical Fish Nano Pico Betta $36.95 Time Remaining: 3h 36m |
 Buy 1 Get 1 Free 36 39 Aquarium LED Light Lunar Double Bright Fish Reef 1W $169.99 Time Remaining: 8d 21h 31m Buy It Now for only: $169.99 |
 Aquarium Fish Tank White Blue 6 12 18 LED 110V 220V Airstone Bubbler LED Lights $21.69 Time Remaining: 12d 12h 27m Buy It Now for only: $21.69 |
 AquaticLife 48 Expandable LED Light Fixture for Aquarium 7 03 $56.00 (10 Bids) Time Remaining: 1d 22h 35m |
 TaoTronics TT AL01 Aquarium Coral Reef Tank White Blue LED Grow Light 120W $159.99 Time Remaining: 29d 4h 26m Buy It Now for only: $159.99 |
 TaoTronics Aquarium Coral Reef Tank White Blue LED Grow Light 120W Black $158.69 Time Remaining: 5h 58m |
 Aquarium Fish Tank 48 LED Blue Bar Light Lamp Power $5.49 Time Remaining: 5d 4h 5m Buy It Now for only: $5.49 |
 T5 Quad 20 Aquarium Light HO 72W Cichlid Marine Reef LED 4x 18W Lamps Nano $65.95 Time Remaining: 17d 14h 11m Buy It Now for only: $65.95 |
 AQUARIUM LIGHT FIXTURE Marine Reef LED T5 T8 coralife HQI Metal halied $19.99 Time Remaining: 6h 18m |
 24 30 Aquarium LED Light Lunar Bright Fish Tank NEW $39.99 Time Remaining: 16d 20h 47m Buy It Now for only: $39.99 |
 Fluval Edge 21 Led Light Fixture Upgrade $43.00 (5 Bids) Time Remaining: 1d 4h 22m |
 Kessil A150W LED Aquarium Reef Coral Light 15000K 15K OCEAN BLUE $249.61 Time Remaining: 27d 20h 19m Buy It Now for only: $249.61 |
 NEW Submersible 42 LED White Light Bar 144 inch Strip For Fish Tank Aquarium $0.77 Time Remaining: 1h 34m |
 48 Aquarium T5 HO Light 216W LED Reef Fish w TIMER CE $109.99 Time Remaining: 9d 9h 22m Buy It Now for only: $109.99 |
 Aquarium Moonlight Fish Tank 18 30 42 57 LED Waterproof Lights Lamp 6 color $19.99 Time Remaining: 12d 19h 1m Buy It Now for only: $19.99 |
 White 60 LED DC 12V 2M 5050 Waterproof Car Fish Tank Decoration Strip Roll Light $0.49 Time Remaining: 3h 8m |
 LED 24 400 Aquarium Light Strip Freshwater Tropical Fish Single Bright 60 cm $39.95 Time Remaining: 10d 15h 21m Buy It Now for only: $39.95 |
 TaoTronics TT GL002 Aquarium Coral Reef Tank black Blue LED Grow Light 120W $159.99 Time Remaining: 5h 56m |
 Beaming Bubble LED Light Up Air Stone 40 Inches $49.99 Time Remaining: 21d 16h 27m Buy It Now for only: $49.99 |
 Underwater Light Lamp LED for Aquarium Fish Tank Pond $1.44 Time Remaining: 1h 4m |
 New Aquarium Fish Tank White + Blue lightingFlexible 48 LED Clip light $18.49 Time Remaining: 21d 16h 45m Buy It Now for only: $18.49 |
 Aquarium Fish Tank Airstone Bubble LED Light Make Fish Tank Beauty Night vision $13.71 Time Remaining: 13d 7h 38m Buy It Now for only: $13.71 |
 Brand New Aquarium Fish Tank 12 Inch 12 Blue LED Bubble Decoration Lights $0.97 Time Remaining: 1h 9m |
 Aquarium Fish Tank BLUE Moon Lighting LED Strip 100 Lumens Ft Salt Water Reef $21.95 Time Remaining: 18d 5h 12m Buy It Now for only: $21.95 |
 HOT SALE Aquarium Fish Tank Pond 6 White LEDs Submersible Bubble Light 165MM $1.56 Time Remaining: 2h 40m |
 48 51 Aquarium LED Light Lunar Bright Fish Tank NEW $69.99 Time Remaining: 21d 11h 28m Buy It Now for only: $69.99 |
 24 LED Aquarium Strip Night Light Fish Tank Waterproof $6.69 Time Remaining: 29d 8h 40m Buy It Now for only: $6.69 |
 NEW Marineland Single Bright LED Lighting System 36 48 Inch Tanks FREE SHIPPING $36.00 (7 Bids) Time Remaining: 18h 41m |
 Aquarium Fish Tank 48 LED Flexible Strip Light + Power $5.24 Time Remaining: 2d 17h 13m Buy It Now for only: $5.24 |
 New 12W Watt PAR38 Led Aquarium Dimmable Reef Coral White Blue Grow Light $54.99 Time Remaining: 1d 2h |
 LED Submersible 45 48 Actinic Aquarium Light Marine Reef 18x 1W 1 Watt Lunar $39.95 Time Remaining: 22d 22h 4m Buy It Now for only: $39.95 |
 63in 165cm 6LED Blue Aquarium Fish Tank Air Bubble LED Light Make Night Vision $1.09 Time Remaining: 1h 59m |
 Aqua Pro 75W 25x3W CREE LED Aquarium Reef Coral Tank LED Light White Blue $119.99 Time Remaining: 1d 1h 3m Buy It Now for only: $119.99 |
 New USB Mini LCD Desktop Fish Tank Aquarium Timer Clock LED Lamp Light Black $29.99 Time Remaining: 2d 9h 37m Buy It Now for only: $29.99 |
 Beauty Aquarium Fish Tank Airstone 12 31cm 12 Blue Bubble LED Light Nightvision $0.49 Time Remaining: 4h 14m |
 48 51 Aquarium LED Lighting Lunar Bright Fish Tank Hood CE NEW $69.99 Time Remaining: 21d 11h 39m Buy It Now for only: $69.99 |
 365cm 12ft Waterproof 42 Blue LED Aquarium Fish Turtle Tank Light Bar Pet New $1.28 Time Remaining: 1h 58m |
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Led Light
LED Lighting: 10 Things to Know
Light emitting diodes, or LEDs, are becoming increasingly popular and more high-quality LED lighting products are being manufactured and sold in the marketplace. LED lighting is an attractive alternative to incandescent or fluorescent lighting in both residential and commercial lighting applications because they are very energy-efficient, have very long lives, are very small in size, do not have any re-strike time, can be dimmable, generate relatively little heat, have a slow failure rate, are shock resistant, work well in low temperatures, their light can be easily focused, and they contain no toxic mercury unlike today’s popular energy-efficient lighting product, the compact fluorescent light bulb (CFL). Here are 10 things that you should know about this newly-emerging light source.
1. Colored and White LEDs LEDs can be red, green, blue, or amber. The color emitted by an LED is dependent upon the materials used to produce it. For example, a red LED is made from the chemical elements of aluminum, gallium, and arsenic. White LEDs are created by covering a blue LED with a yellow phosphorous coating. A white LED can also be created by using a red, blue, and green LED in close proximity to each other. At this time, there is not an LED that can emit white light. Producing an LED that could emit white light is the “holy grail” of LED light research.
2. LED Brightness A single high power LED can produce about 80 lumens of light. In comparison, a standard 60 watt incandescent light bulb produces about 900 lumens. Thus, a single high power LED is only about 1/11th as bright as a 60 watt incandescent light bulb. In order to produce adequate lighting, therefore, an LED fixture must contain groups of LEDs. However, the future is bright, pun intended, for LEDs. The lumen output of LEDs has almost doubled in the last two years.
3. LED Color Temperature Color temperature is a measure of the color appearance of a light source which helps describe the apparent “warmth” (reddish) or “coolness” (bluish) of that light. Light sources below 3200 Kelvin (3200K) are considered to be “warm;” while those above 4000K are considered to be “cool” light sources. For comparison, a traditional household incandescent light bulb is 2800K. The color temperature of a light source is not related to how hot the light source will get or how much heat is given off by the light. White LEDs vary in color temperature. Some white LEDs can be as “warm” in appearance as 2600K but most white LEDs are slightly “cool” in appearance. This is because most white LEDs are created by putting yellow phosphors over blue LEDs.
4. LED Color Rendering Color rendering index (CRI) is the ability for any light source to render colors accurately. The CRI scale goes from 1 (low pressure sodium) to 100 (the sun). A CRI of 75 is considered to be good, a CRI of 85 is considered to be very good, a CRI of 95 is considered to be excellent, and, of course, a CRI of 100 is considered perfect. LEDs in a warm white color temperature are currently available with a CRI of 80.
5. LED Efficacy As with all light sources, the efficacy of LEDs is measured in lumens/watt, the amount of light produced by one unit of power. Warm white LEDs produce between 25-44 lumens/watt while cool white LEDs are more efficacious by producing 47-64 lumens/watt. In comparison, the typical household incandescent light bulb creates 10-18 lumens/watt while compact fluorescent light bulbs produce 35-60 lumens/watt.
6. LED Drivers Fluorescent light bulbs require a ballast in order to function. The ballast provides a starting voltage and limits the electrical current to the light bulb. LEDs also require a similar electronic power source. For LEDs, this electronic power source is usually called an LED driver. The LED driver converts line power to the appropriate voltage (usually between two and four volts DC for high-brightness LEDs) and current (typically 200-1000 milliamps or mA), and may also include dimming and/or color correction controls. LED drivers are generally about 85% efficient. Thus, the efficacy of LEDs should be reduced by 15% to account for the LED driver.
7. LED Heat Generation It is a myth that LEDs do not generate heat. In fact, all light sources generate heat and LED lights are no different. Thus, it is important that an LED fixture is well-designed with “heat sinks” to adequately dissipate the heat that is created.
8. LED Lifespan LEDs do not burn out like an incandescent light bulb. Instead they get progressively dimmer over their lifetime until they no longer emit enough light to be useful. An LED is generally considered to be no longer useful when it is emitting only 70% of the original amount of light the LED produced. The time that this takes is often referred to as the “rated life” of an LED. While some LEDs may have a rated life of 100,000 hours, this is usually only under perfect laboratory conditions. Under real-world conditions most LEDs operating in light fixtures might last up to 60,000 hours. The rated life of an LED is often much less when the LED is operating in a light fixture as opposed to the same LED operating outside of a light fixture due to the buildup of heat inside the fixture. The typical LED inside of a typical light fixture may have a rated life of 35,000 to 60,000 hours.
9. OLED An OLED is an organic light emitting diode. It is an LED that also contains carbon. OLEDs are generally manufactured as flexible lightweight sheets. Today, OLEDs operate at significantly lower efficiency than inorganic (crystalline) LEDs. OLEDs typically generate less light per area than inorganic, solid state LEDs, which are usually designed for use as point-light sources.
10. Infrared and UV Radiation White LEDs do not emit infrared, or heat, radiation like an incandescent light bulb. In addition, white LEDs do not create ultraviolet radiation (UV rays) like a fluorescent light bulb.
Although there has been a lot of media attention given to LEDs, there are still far too many LEDs that are not well-designed. In short, the LED lighting market is still maturing. Research continues to improve LED brightness, efficacy, and the rated life of LEDs at a remarkable pace. However, in the short-term be cautious when selecting an LED lighting fixture.
This article, “LED Lighting: 10 Things to Know,” first appeared on the Pegasus Associates Lighting website.
About the Author
About the Author
Tom Farin is founder and President of Pegasus Associates Lighting. Dr. Farin has been in the field of lighting for over 20 years. He has extensive training and experience in lighting, physics, mathematics and education, acquired at the undergraduate level, in graduate school, and in the field. It is Dr. Farin's interest and expertise in education that drives the overall design of the www.PegasusAssociates.com site - with its heavy emphasis on lighting terminology, lighting techniques, and thorough information on each lighting product.
What does the LED light in my Biocube do?
I just got a Biocube and I've been researching about them a lot! I can't find any info on the LED light though. I'm not sure of what it does. It doesnt have a switch to turn it off so I'm assuming I leave it on all the time?
it is a blue led lunar light
Saltwater fishes and corals like to be on cycles, so the led lunar light is always on, i bought a timer for my biocubes so that it is always pluged in, BUT it doesnt come on until the light system turns to night mode, then it turns on the lunar light.
If you dont get a timer(i highly recommend the one from corallife) you would have to plug in the lunar light as it wouldnt be a good idea to leave it on when teh tank has both lights on/
Weekend Project: LED Light Brick