Reef Aquarium LED light fixture with modern lightweight design and effective 1W LED chips with optical lenses. This light is specially designed for reef aquariums with live corals. Wavelength combination of the LEDs is optimized to fulfill the photosynthetic needs of corals symbiotic algae, while the amount of white light is kept high enough to make the light color pleasant to human eyes. This light fixture also has a special functional design, which enables pure 10 000K white light (colored LEDs turned off) when natural neutral light is desirable, for example in photographing situations.

Although designed for reef aquariums with live corals, this light fixture is naturally suitable for fish only marine aquariums as well. It can also be used in fresh water aquariums where bluish light is desired, as blue light enhances fish colors and creates an impression of wide and deep waters. Therefore, this light is very pleasant in aquariums housing malawi and tanganjika cichlids. As this is a wide spectrum light with blue emphasis, it is also suitable for fresh water aquarium plants and for supporting vegetative growth of plants in situations where too much red light is avoidable. (Blue wavelengths emphasize low and strong stem growth, while too little blue wavelengths can cause thinner elongated stem growth. This light produces all the blue wavelengths important to the vegetative plant growth, while the amount of red wavelengths is much lower than in regular grow lights. )

20W LED light fixture is designed to replace a fluorescent tube light fixture with 2-3 HO tubes and polished reflectors of similar length. As LED diods concentrate light more effectively to the desired direction, this light has a longer effective lighting distance than fluorescent tubes. It has a passive silent cooling system without integrated cooling fans. Frame length is modular so that the light can be fitted to most aquarium and terrarium sizes. Lightweight construction allows the fixture to be used with integrated legs, placed directly on aquarium / terrarium glass / screen cover or suspended above plants.

Although externally similar with LED light fixtures offered under other brand names, this model is more advanced in both operation and light spectrum. Power switch has three positions; all LEDs on, only white LEDs on and power off. This allows the user to turn off all colored (red and blue) LEDs and illuminate aquarium / terrarium (or other target) with pure white light. This is very useful for photographing. In other similar light fixtures, the switch operation is the opposite (blue LEDs on - all LEDs on – Off) and the fixture cannot be used to produce neutral white light. The light spectrum has been optimized for reef aquariums so there are red, purple and blue wavelength LED chips along white ones, while the other similar light fixtures typically only have blue and white LEDs.

Extendable legs can be mounted directly on aquarium glass walls (max. 12mm glass). Legs are removable and the holes for the rods go through the entire light fixture frame. This enables to make extended custom legs from any 4mm round steel or aluminum bar and to mount several light units to each other.

Due to the removable legs and their drilled through holes, this light fixture is easy to suspend with wire or even strong fishing line. As the transformer is in a separate unit which is connected to the 12V light panel with a quick-detachable cable, the light fixture is very lightweight. This makes suspension application easy and the light panel can be placed directly on aquarium or terrarium top cover with or without mounting legs.

Light fixture length (50cm) is modular and a larger or an odd shaped aquarium or terrarium can be easily illuminated with multiple light panels, which is often more applicable than using one very long fixed frame light fixture.

NOTE! When the power of LED light is compared to the power of other lighting technologies (fluorescent tubes, metal halide lights etc.), it is important to understand the effect of different wavelengths to the visible light. Human eye observes white full spectrum light (comparable to the natural sunlight) as the brightest light. Specialized artificial light that only contains narrow spectrum of blue or red wavelengths or a full spectrum light that has a color temperature (K) significantly different than natural sun light is not observed to be as bright as white light, although the actual light radiation is the same. For example, a 20W daylight fluorescent tube with 6500K-10 000K spectrum (= cool white light) looks brighter than a 20W 2700K tube (= warm white / yellowish light) or a 20W red-blue plant tube when evaluated by human eye, although they produce exactly the same amounts of light energy.

LED light that has been designed to be optimal for live plants has LEDs that produce just red and blue wavelengths along white LEDs. The larger the portion of colored LEDs, the more optimal the light is for plant photosynthesis (in comparison to the consumed electricity), but the less bright the light seems to be to human eyes. Therefore, LED vs. other lights efficiency comparison means the efficiency from the plant photosynthesis perspective, not by a human eye observation. For example, if a LED fixture that has colored LEDs is said to be comparable in light power to three (3) fluorescent tubes, the light efficiency observed by human eye should be compared to three red-blue plant fluorescent tubes, not to three white daylight tubes.

Technical specifications:

• Type: LED Aquarium Light
• Use: Reef aquariums, Marine aquariums, Malawi / Tanganjika aquariums, vegetative grow light for plants
• Mounting: Extendable legs (max. 12mm glass)
• Aquarium length: up to 70cm
• LED type: 1W with lens; 24pcs
• Light Spectrum: 16pcs white (10 000K), 3pcs blue 430nm, 3pcs blue 460nm, 1pcs purple, 1pcs red 630nm
• Operation modes: 3 modes; white LEDs on / All LEDs on / Power off
• Cooling: Passive cooling
• Power: 20W
• Size: 500*106*22mm
• Weight: 0,660kg (0,574kg without legs)
• Standard: 230V, 50Hz, Europlug, IP44, (12V low voltage)