Bulb Reef
The Right Lighting for Your Reef Tank
Reef Tank lighting is one of the most important aspects of reef keeping and undoubtedly the most discussed debated and disagreed about too!
Proper lighting intensity is essential for the corals to carry out the process of photosynthesis, the process through which they create energy needed to survive and grow. Whatever the approach or equipment be, the ultimate goal of al lighting methods is to provide photoperiod, intensity and proper spectrum for your reef inhabitants to flourish and thrive easily.
The commonly used phrase, “watts per gallon,” is a way of expressing the lighting necessary for a tank by the ratio of the power used to illuminate the tank divided by the tank size in gallons. Many hobbyists suggest that an adequate amount of light would vary between four watts and six watts per gallon for low light coral and as much as ten watts per gallon (or more) for light loving coral. While such a rule of thumb may initially sound like a good idea, it should only be used as a rough guideline and not as a strict rule. Obviously, such a loose rule is misleading, and aquarists need to consider more than just “watts per gallon.” Specifically, they must take into account the height and overall size of the tank.
Lighting in the reef aquarist parlance is generally expresses in “Watts per gallon”. A thumb rule suggested by many says that light should vary between four to six watts per gallon low light coral and about 10 watts for corals with high light intensity needs. But this is not a hardcore researched rule and should only be used as a rough estimate. There are other factors like the overall height and depth of the tank before making a choice.
A very innovative method of using a multi-light system with timers or controllers to vary the number of lights on at any given time is probably the most effective one. In this system usually one bulb remains on for an hour, then all the bulbs for 10 hours and then just one is left on for next hour. This method actually simulates the sun passing over. This is as close one can get to re create the natural lighting mechanism of the sun.
There is no doubt that steady advances made in the light manufacturing industry have made these equipments better and better and more efficient.
The solution for your Reef Tank can vary in price from inexpensive to very expensive. What suits you depends upon the kind of life you want in your tank.
Two primary lighting equipments available in the market and widely used are Fluorescents and Metal Halides (MH).
There are several variants of Fluorescents. These are the least expensive or rather value for money choice and are suitable for practically all light choices. These are relatively cool (literally speaking, not metaphorically!). And generally they last for many months before requiring replacement. Examples of different fluorescents are: Normal Output (NO), High Output (HO), very High Output (VHO), Power Compacts (PC) and T5’s.
Among all the variants in fluorescents you can call Power Compacts a next generation fluorescent bulb. They have a modern twin tube design, basically a fluorescent tube that is bent in half. Therefore much greater light intensity is produced than other standard fluorescent variants. The fluorescent tubes are available from 10 to 130 watts and can last up to a year to two.
You should opt for a fluorescent if your Reef Tank is not very deep. There are some corals like SPS corals for which the light intensity of fluorescent is not enough. So keep these points in mind while thinking of a fluorescent.
The other popular option is the Metal Halides. There are different parameters to be considered here too. They are the most intense of all available lighting systems. If you have a tank which is deeper than 20 inches, this is what you may consider to buy, as halides have greater capacity to penetrate to depths beyond 20 inches. Apart from the utility they beautify your tank also by producing sparkling glitter lines.
So if you want to have a successful reef, know your tank and corals well and then make an informed choice. Only then ‘Let there be Light’!
About the Author
Learn about hamster accessories and hamster babies at the Types Of Hamsters site.
“Bulb” Reef PSA
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150 watts Metal Halide Bulb MH 20000K 20K HQI Double End DE Reef Coral Marine $11.95 |
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60″ 5 ft T5 Aquarium Light Hood Coral Reef 8 Lamps 80W Bulb 640W Used R58 Marine $169.95 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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FOUR 65W Aquarium compact PC bulb ST Reef Fish Plant $22.99 |
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PHOENIX 250 W Watt HQI 14K Metal Halide Reef Coral Bulb $49.99 |
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400W 14000K METAL HALIDE AQUARIUM & REEF BULBS LAMPS $23.99 |
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175W 20000K METAL HALIDE AQUARIUM & REEF BULBS LAMPS $23.99 |
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250W 14000K METAL HALIDE AQUARIUM & REEF BULBS LAMPS $23.99 |
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175W 14000K METAL HALIDE AQUARIUM & REEF BULBS LAMPS $23.99 |
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250W 20000K METAL HALIDE AQUARIUM & REEF BULBS LAMPS $23.99 |
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T5 HIGH OUTPUT AQUARIUM SALT WATER REEF FLUORESCENT LIGHT/ 4′ HOOD w 6 bulbs $139.95 |
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BLUE LED REEF AQUARIUM MOON LIGHT BAR 46″ LIGHTING FIXTURE w/REPLACEABLE BULBS $56.44 |
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8 T5 ACTINIC 4′ F54T5/HO AQUARIUM/REEF LIGHT BULB! HIGH OUTPUT LAMP 4 FOOT BLUE $56.88 |
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4 T5 ACTINIC 4′ F54T5/HO AQUARIUM/REEF FLUORESCENT BULB $35.97 |
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60″ 5 ft T5 Aquarium Light Hood HO Marine Coral Reef 8 Lamps 80W Bulb 640W Used $179.95 |
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2x 250 watts Metal Halide Bulb HQI SPS Reef 15000K DE $29.99 |
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PHOENIX 150 W Watt HQI 14K Metal Halide Reef Coral Bulb $41.99 |
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250W 20K DE Metal Halide Bulb Lamp Reef (FC2) $26.50 |
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150W 10K HQI Metal Halide Bulb Lamp Reef $17.50 |
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150W 20K HQI Metal Halide Bulb Lamp Reef $19.00 |
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250W 14K HQI Metal Halide Bulb Lamp Reef (FC2) $29.50 |
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CORALIFE HQI 150 WATT METAL HALIDE AQUARIUM REEF TANK FISH LIGHT BULB & BALLAST $51.09 |
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3 Coralvue Reflector Metal Halide Reef Light 175 Watt Mogul Lamp Bulb MINTY $599.00 |
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250W 14K HQI Metal Halide Bulb Lamp Reef E40 type $25.50 |
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2x 150 watts Metal Halide Bulb HQI Coral Reef 20000K DE $29.99 |
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24” AQUARIUM LIGHT T5 HO 8X 24 WATT REEF MOONLIGHTS LUNAR LIGHTS W/ BULBS NEW $289.99 |
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T5 Quad 60″ 5 ft Aquarium Light Marine Reef Cichlid 320W 80W Bulb LED Odyssea $139.95 |
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2 X 150Watt 20000K Double Ended HQI Metal Halide Reef Coral Aquarium Bulb R7S $18.98 |
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150Watt 14000K Double Ended HQI Metal Halide Reef Coral Aquarium Bulb R7S $9.99 |
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2 X 150Watt 14000K Double Ended HQI Metal Halide Reef Coral Aquarium Bulb R7S $18.98 |
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150Watt 20000K Double Ended HQI Metal Halide Reef Coral Aquarium Bulb R7S $9.99 |
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60″ 5 ft T5 Aquarium Light Coral Reef 8 Lamps 80W HO Bulb 640W Used R58 Marine $169.95 |
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400W 14K HQI Metal Halide Bulb Lamp Reef $33.00 |
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Used Phoenix 14K 250W DE HQI MH Metal Halide Bulb Reef Tank HexArc Blue $0.99 |
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T5 Quad 60″ 5 ft Aquarium Light Marine Reef Cichlid 320W 80W Bulb LED Odyssea $139.95 |
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Used Radium 20K 250W SE HQI Metal Halide Reef Tank Bulb For SPS MH Aquarium $2.25 |
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Brand New Krystal Star SE 250W 11K MH Bulb For Coral Reef Aquarium $0.99 |
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250W Purple Blue SE Metal Halide Bulb Reef Lamp $28.50 |
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150W 20K HQI Metal Halide Bulb Lamp Reef $17.50 |
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Reef Light-48″ Power Compact Strip w 1/ 65 watt 50/50 bulb &LED $25.00 |
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175 Watt 20K Metal Halide MH Mogul Reef Lighting Bulb 175W Clearance $26.97 |
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400 Watt 10K Metal Halide MH Mogul Reef Lighting Bulb 400W Clearance $26.97 |
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250W 14K HQI Metal Halide Bulb Lamp Reef (FC2) $26.00 |
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24” AQUARIUM LIGHT T5 HO 4X 24 WATT REEF LIGHTING LUNAR MOONLIGHTS W/ BULBS NEW $159.99 |
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IceCap Ballast 660-009 VHO -HO-STD Bulbs Reef Aquarium Saltwater Tank $39.99 |
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Zoo Med 48 Inch Reef Sun Flourescent Bulb (T8 STD Outp $11.80 |
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Zoo Med 24 Inch Reef Sun Flourescent Bulb (T8 STD Outp $12.88 |
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Zoo Med 36 Â Inch Reef Sun Flourescent Bulb (T8 STD Out $11.46 |
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Zoo Med 18 Inch Reef Sun Flourescent Bulb (T8 STD Outp $11.84 |
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IceCap Ballast 660-009 VHO -HO-STD Bulbs Reef Aquarium Saltwater Tank $39.99 |
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MH ADV 36″ Metal Halide Aquarium Marine Coral Reef 2x 250W MH Bulb T5 LED Lunar $269.95 |
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T5 Quad 24″ Aquarium Light Strip Marine Coral Reef Cichlid LED 96W 4x 24W Bulbs $74.95 |
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Zoo Med Reef Sun 50/50 Bulb, 24-Inch $11.89 |
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Zoo Med Reef Sun 50/50 Bulb, 36-Inch $11.89 |
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Zoo Med Reef Sun 50/50 Bulb, 48-Inch $13.89 |
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4x 39W High Output HO T5 Bulb Aquarium Reef 10000K Day $19.99 |
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Aquarium LED Light Bulb Reef White Marine, 27w, 9×3w $102.70 |
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COBRALIFE ACTING 20W 24″ Fluorescent Bulb Ideal for saltwate reef and freshwater $15.00 |
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150W 20K HQI Metal Halide Bulb Lamp Reef $12.99 |
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250W 20K SE Metal Halide Bulb Reef Lamp E40 $21.00 |
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250W 20K DE Metal Halide Bulb Lamp Reef (FC2) $24.50 |
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2x 36W UV Sterilizer Light Bulb 2G11 Odyssea Reef NEW $29.99 |
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60″ 5 ft T5 Aquarium Light HO Coral Reef 8 Lamps 80W Bulb 640W Used R58 Marine $169.95 |
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60″ 5 ft T5 Aquarium Light Hood Coral Reef 6 Lamps 80W Bulb 480W Used R56 Marine $159.95 |
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175 Watt Reef Grow Metal Halide Aquarium Bulb HID $60.00 |
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400 Watt Reef Grow Metal Halide Aquarium Bulb HID $75.00 |
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36” AQUARIUM LIGHT T5 HO 6X 39 WATT REEF LUNAR MOONLIGHTS LIGHTING W/ BULBS NEW $229.99 |
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250 Watt Reef Grow Metal Halide Aquarium Bulb HID $70.00 |
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150 Watt Reef Grow Metal Halide Aquarium Bulb HQI $49.00 |
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250 Watt Reef Grow Metal Halide Aquarium Bulb HQI $69.00 |
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400 Watt Reef Grow Metal Halide Aquarium Bulb HQI $125.00 |
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70 Watt Reef Grow Metal Halide Aquarium Bulb HQI $36.00 |
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Laboratories Reef 50 50 Bulb 36 Inch-RL-36 $32.04 |
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2x 150 watts Metal Halide Bulb HQI Coral Reef 15000K DE $29.99 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $94.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $164.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $194.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $119.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $169.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $239.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $299.95 |
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T5 GROW LIGHT COMPLETE w T5HO BULBS 2 4 6 8 lamp 24″ 48″ Fluorescent Veg Bloom $134.95 |
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RETURN: PHOENIX 150 W Watt HQI 14K Metal Halide Reef Coral Bulb $35.00 |
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GE 6500K DAYLIGHT T5 24W 24″ REEF AQUARIUM BULB $14.95 |
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UVL ACTINIC WHITE 12K 24W 24″ T5 REEF AQUARIUM BULB $20.95 |
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UVL ACTINIC WHITE 12K 54W 48″ T5 REEF AQUARIUM BULB $20.95 |
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UVL AQUABLUE 75/25 14K 24W 24″ T5 REEF AQUARIUM BULB $20.95 |
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UVL AQUASUN 10K 24W 24″ T5 REEF AQUARIUM BULB $20.95 |
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UVL SUPER ACTINIC 24W 24″ T5 REEF AQUARIUM BULB $20.95 |
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Metal Halide Aquarium 175W watt 14000K Mogul E39 MH 14K Reef Marine Bulb $22.50 |
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Panasonic NN-H965WF, 2.2cuft 1250 Watt Sensor Microwave Oven, White $161.99 2.2 CU-FT CAPACITY1250WINVERTER TECHNOLOGYDIGITAL DISPLAY9 COOKING CATEGORIESDEFROSTWHITEUPC : 037988909124Shipping Dimensions : 26.50in X 21.25in X 16.60inEstimated Shipping Weight : 56.3125… |
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Paupau New Guinea, Photo Mugs Paupau New Guinea, Great Barrier Reef, Spinecheek Anemonefish (Premnas biaculeatus) Bulb-tipped Anemone (Entacmaea qudricolor)…. |
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Brightest MR11 12 Volt AC DC 10 5050 SMD LED Bulb Wide Angle 160 Lumen 2.1 Watt, white, 1113WH $8.00 This is our brightest MR 11 bulb. It has 10 high-powered led bulbs, which produce about a 3 watt Luxeon bulb. The light pattern is perfect for illuminating displays or even just adding accent lighting yet it is still bright enough to be used anywhere. LED bulbs are compatible with all types of magnetic transformers but not all electronic transformers. Many electronic transformers require a minimum… |
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10W 12V HALOGEN BULB WITH G4 BASE $0.01 10 watt JC type halogen light bulb. 12 volt, G4 Base…. |
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LEDwholesalers 10 Watt LED Waterpoof Outdoor Security Floodlight 12 Volt DC, 3701W-12V $21.41 This outdoor security light is fully waterproof and uses 12 volts DC. It only uses 10 watts of power and still produces a large amount of light. Use it in the dark areas of your house to give it that extra light. This light is very energy efficient, has a very long life and does not produce very much heat. Light output colors comes in cool white color (5800-6200K). Bulb Type:Outdoor waterproof sec… |
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Brightest MR11 12V 10 SMD LED Bulb Wide Angle This is our brightest MR 11 bulb. It has 10 high-powered led bulbs, which produce about a 3 watt Luxeon bulb. The light pattern is perfect for illuminating displays or even just adding accent lighting yet it is still bright enough to be used anywhere. LED bulbs are compatible with all types of magnetic transformers but not all electronic transformers. Many electronic transformers require a minimum… |
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Dorcy 41-1682 H3 – 6V 75 Watt Halogen Replacement Bulb $0.01 41-1682 6-Volt 75-Watt H3 Halogen Replacement Bulb… |
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Sony VPL-BW7 3 LCD Digital projector $899.99 Watch your favorite TV show, play your favorite game, or watch the big game on an even bigger screen with the Sony VPL-BW7 Projector. Sporting 3LCD panel technology, an output of 2,000 lumens, and a contrast ratio of up to 1000:1, the VPL-BW7 delivers WXGA (1280 x 800) HD 720p resolution, giving you an outstanding viewing experience…. |
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Targus Digital TG-RSVL Video Light $0.28 TG-RSVL Universal Camcorder Video Light… |
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Rocketfish Clip-On LED Light for Most Digital eReaders $5.64 Clip-On LED Light for Most Digital eReaders… |