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Barnacle_Blenny

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I Actually love this light but my tank is 2 feet front to back and I get a little shadow on the back and I don't want to redo my rock work my coral goes all the way to the water line. The light will work fine for 55g 65g and smaller tanks. The fixture is 72cm wide. I will be buying two of there smaller units the K5527. The light has a built in timer and screen for dusk/dawn effect. They sell for $596 new I used it for just a little over a week. It took over a month to get it. I also have a little mini review of it here. http://www.manhattanreefs.com/forum...ed-k2-k7236-ultra.html?highlight=key+aquarium

I will let it go for $579 Since it's basically new and you don't have to wait over a month for it. The Unit uses 3W cree's it looks amazing. First person to pay gets it. The spec sheet is below:

New Programable KEY K2 Aquarium LED Lighting For Saltwater (Built-in Timer). The Second Generation of High-power KEY Aquarium LED Light uses the 3w CREE LED lamps mainly designed for home users. The design concepts are energy-saving, environmentally-friendly, beautiful and having long service life.

The features of KEY Aquarium LED Light K series:
• High-performance chips (Cree LED chips), ensure the luminous effects.
The main light device uses high-power LED chips (no need to replace lamp beads in five years; for Cree chips no need to replace lamp beads in seven years). BridgeLux can use 30,000Hrs, and Cree can use 50,000Hrs.​
Low energy consumption, more power efficiency.
LED has the feature of high brightness and low energy consumption, so under the same brightness, using LED, power is only half of the traditional lamp. Besides, LED can emit light from some direction, completely different from the traditional lights, emitting from all directions.​
No heat radiation, more suitable for aquarium use.
LED lamps do not have any heat radiation, even under the condition that the room is 35?C, and the lamps are close to the water surface, the water temperature will not be increased, which will definitely reduce using chiller or air-conditioner.​
Excellent lighting effects.
The 60? condenser cap ( K serials can provide 15?~30? poly masks) , specially designed to focus light, and the nano-reflective bars, fixed on both sides, are to make sure that the light can focus on the aquarium to the maximum extent. The lamps emit fixed fire light, so the corrugated surface of the water can reflect the shadow of everything in the aquarium, showing natural sparkling effect. On the contrary, conventional lamps cannot achieve that effect.​
Single bead is High Power 3W, no hurt on eyes.
3W-chip bead is used for main lighting and if stared for a short time, the light will not hurt your eyes. (Not like metal halide, even stared for a short time, it will hurt your eyes.) Besides the lamps do not contain any UV light, so creatures and humans are absolutely safe.​
Blue luminous light, dreamy aquarium.
Seawater dedicated blue-ray is a particular wavelength of 465nm blue light, suitable for the vast majority of the growth of marine organisms. Turn blue lights on in the evening, coral, software and fishes can appear fluorescent and fantastic effects.​
External power supply, low voltage input.
With external power supply, the power weight and heat cannot be brought to the main lights. Low voltages, driven to the main light by DC and with short-circuit security system make creatures and humans are absolutely safe.​
Thin main light, a wide range of installation.
Because of the simple design and thin main lights, even in the embedded wall aquarium narrow space, the LED lamps can provide long-lasting, high-brightness light.​
Flexible control of light effect by pressing different buttons.
Packet aluminum radiator lamp body ensures group control, that is group opening and closing, which can reduce the power. (Not like the metal halide, turning on or off instantaneously scares off the fishes and software.) In the evening turn on the main lights and at night luminous light can be turned on.​
Active and passive cooling systems ensure the service life.
Cooling system consists of two parts: active cooling system and passive cooling system. Active cooling system is an overall aluminum radiator. (Even not opening the cooling fan, the heat can also be completely removed, without any bad influence on the LED useful life.) Passive cooling system is composed of multiple sets of fans, which can remove the heat of LED beads adequately even in high room temperature conditions. Besides, KEY's tooth optical cooling technology (patent pending), completely solved the high-power LED thermal problems.​
Color temperature can be custom-made, which can be used for both sea and fresh water.
The color temperature for seawater is around 12000K (CREE) and Bridgelux (13000K), and for fresh water is around 6000K. Our LED lamps' color temperature can be used both in sea water and fresh water. Other color temperature of lamps can be ordered.​
Constant current driver ensure the luminous efficiency.
Constant current power supply are used in all series of high-power LED lamps in KEY Aquarium LED Light, which can high precisely provide constant current power within the scope of beads, which not only increasing the service life, and also ensuring the brightness. Power supplies comply with UL, CE, CCC certification, exporting to Europe and the United States.​
Installation variety
There are three kinds of installation mode supporting the main light body: hanging type, horizontal bracket-style, vertical rack. All the three models are in support of 5 ~ 18MM thick aquarium glass. Check HERE for more details of Installation for your tank.​
International Voltage.
Input Voltage supports 110-240V power supply.
No need to wait 3 weeks for it to come from Hong Kong I have in in stock now. Also I have it listed other places as well.
1 Year Warranty
Model
Size (LWH)
Color Temp.
3W White (PCS)
3W Blue (PCS)
Power
Similar As
Wave Length regulation light group (Moonlight)
Independent controller light group
Beaming Angle
Light Penetration Depth
K7236-Ultra
72*25*4cm​
12000K​
24​
12​
108W​
250W HQI​
2​
3​
60?​
60~70(CM)​
 
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Barnacle_Blenny

Advanced Reefer
Location
Right by the GWB
Rating - 100%
21   0   0
72 bow you will have dark spot up in the first 2-3 inches either in the front or the back depending where you place it has about an 18-19 inch spread of light front to back . it will do fine with the 48" across. The video and pictures taken with the unit are on a 72bow tank so you can check them out on my review thread
 
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