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For small aquariums and more
LED lamp designed to illuminate freshwater open tanks with a length of 7,9 to 26,4 in. It emits light similar to sunlight and supports fast, undisturbed plant growth.
For the freshwater aquarium Modern LED lighting Energy-saving Perfect for plants

Product description

The lamp contains two rows of diodes with a total power of 10 W (2×5 W) or 16 W (2×8 W). Half of them are SUNNY diodes emitting light similar to sunlight (color temperature 7000 K), and the other half are PLANT diodes developed especially for the needs of plants (color temperature 9000 K). The lamp perfectly reproduces the colors of the tank interior and supports fast, undisturbed plant growth. It is perfect for small plant aquariums and shrimp tanks. Its flat, futuristic shape and fashionable black color make it fit perfectly with modern aquarium tanks and look great in any interior. Moreover, it is universal – it can also be installed on tanks of non-standard sizes.

The LEDDY SLIM DUO SUNNY PLANT&NIGHT LED lamp operates in three operating modes: DAY (SUNNY 100% power + PLANT 100% power), DAYBREAK (SUNNY 50% power + PLANT 50% power + NIGHT 100% power) and NIGHT (NIGHT 100% power) ). DAY is the basic and strongest light for illuminating the aquarium during the day. DAYBREAK works well as the first mode after night and when feeding fish – especially if you have a skittish stock. NIGHT is a blue glow that allows for a unique observation of the aquarium after dark, including fish and nocturnal animals. DAY & NIGHT lighting will beautifully highlight the arrangement in the aquarium both during the day and at night, and will also make the interior more cozy. The DAY / DAYBREAK / NIGHT operating mode is changed after turning the module off and on using the switch within no longer than 5 seconds. Switching directly to DAY mode takes place after turning off the module for a period longer than 5 seconds and turning it on again. It is best to automate this process by using the modern SOCKET DUO aquarium controller.

Open aquariums and their lighting

An open aquarium is a great option for people looking for modern and designer solutions in aquariums. It is preferred especially by enthusiasts of styles such as Dutch, Japanese or biotope aquariums. Thanks to its natural appearance, an open aquarium can become an attractive element of interior design and attract the attention of guests. It also ensures better air humidity in the room, which is especially beneficial for people suffering from respiratory diseases.

Open aquariums are tanks without a lighting cover. In their case, lighting mounted on beams or hanging lamps is used. Lamps for mounting on the side edges or on the rear wall of the tank are also often used. The latter are dedicated to smaller capacity “nano” tanks.

Why do we illuminate the aquarium?

There are usually two reasons. First of all, the tank has to look nice, i.e. natural. The light is supposed to make fish and plants have beautiful colors appropriate for a given species, and the whole thing will be an undisputed decoration of the room. The second goal is equally important – the vast majority of aquarists want to have healthy, well-growing plants in their aquarium. And plants need light to grow for 10-12 hours a day, which is the “drive” for photosynthesis – a natural process as a result of which they transform inorganic compounds into organic substances necessary for their life. Therefore, correctly selected light will also guarantee that the aquarium will look nice and that the plants will grow well in it.

How much light in the aquarium?

How much light does an aquarium require? It depends on what species of plants we intend to grow there. In terms of light requirements, they can be divided into three groups:

Group I – shade-tolerant species, e.g. “pelia”, mosses, winged microsorium, screw moss, some plants (e.g. Aponogetonofolia, Wendt’s assemblage, Backett’s assemblage, Malay assemblage), anubias.

Group II – species that are moderately light-loving, e.g. ball-shaped seaweed, water-wort, roseworts, tiger lotus, ludwigia, broad-leafed water-wort, three-flowered water-wort, frogwort, broad-leafed dart, Argentine waterweed, giant common waterwort, compacts, limnophiles, small-leaved bacopa, Thai marmoset, ponikło , japanese blyksa, spearworts.

Group III – species that are definitely photophilous, e.g. cabombas, “glossostigma”, hemianthus.

Usually, the conversion of lighting power to the liter of the aquarium is used. It is conventionally assumed that in the case of LED lamps for growing shade-tolerant plants, it is necessary to have at least 0.15-0.2 W for each liter of water. Medium-demanding plants need 0.25-0.4 W/l, and those definitely light-loving even 0.5-0.7 W/l.

A “day” in an aquarium can fall on virtually any part of the day. If the tank is located far from windows and is lit only by artificial light, the times the lighting can be turned on and off can be virtually any. It’s best to simply adjust them to our preferences and the hours when we are usually present in the apartment (e.g. “dawn” at 3 p.m. and “dusk” at 1 a.m.). Then, we can enjoy the beauty of our own “piece of the underwater world” in brightly lit places.

Versions and parameters

Art. nr.
Aquarium width [in / cm]
Power [W]
Color temperature [K]
Leddy Slim Duo 10W Sunny Plant&Night White Leddy Slim Duo 10W Sunny Plant&Night Black Leddy Slim Duo 16W Sunny Plant&Night White Leddy Slim Duo 16W Sunny Plant&Night Black
124218 124219 124220 124221
7.9 - 11.8 / 20 - 30 7.9 - 11.8 / 20 - 30 15.7 - 26.4 / 40 - 67 15.7 - 26.4 / 40 - 67
10 10 16 16
650 650 1100 1100
8000 8000 8000 8000

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