Sobo AL-480 COB Planted Aquarium Light 21 Watts

The Sobo AL-480 is a 21W COB full-spectrum LED aquarium light built for planted tanks 50–60 cm long, delivering bright, even illumination that drives healthy plant growth and makes fish colours pop. It uses Chip-on-Board (COB) LED technology in a slim aluminium body that sits across the tank on adjustable brackets, giving strong light penetration without a bulky fixture. Energy-efficient, low-heat and long-lasting, it is a popular mid-size planted-tank light for Indian aquascapers.

Why choose the Sobo AL-480?

• 21W COB full-spectrum output that supports vigorous photosynthesis and brings out vivid greens, reds and fish colour.
• Sized for 50–60 cm tanks — ideal primary lighting for medium planted aquariums.
• Slim aluminium casing that looks clean on any setup and dissipates heat well for a long lifespan.
• Fully adjustable brackets that extend to fit the tank width and suit both freshwater and marine setups.
• Energy-efficient and low-heat, keeping running costs and tank temperature down.

Specifications

Which tanks is it best for?

The AL-480 is designed as the primary light for medium planted aquariums 50–60 cm long (roughly 2 ft). It provides enough intensity for low- to medium-light plants such as Anubias, Cryptocoryne, Java fern, swords and easy stem plants, and works equally well as a bright display light for tropical fish-only tanks. For demanding carpets and red plants, pair it with CO2 and dosing — see our planted aquarium lighting guide. Smaller tanks suit the Sobo AL-380 (40–50 cm) or AL-180 (20 cm nano).

How to use it

Sit the light across the tank on its adjustable brackets and run it for 7–8 hours a day for a planted tank, ideally on a timer for a consistent photoperiod. Always give the tank a dark night period and keep it out of direct sunlight to prevent algae. A glass or acrylic canopy between the light and the water is recommended to protect the unit from moisture and extend its life. For the full schedule, see how many hours should aquarium lights be on and should you turn aquarium lights off at night.

Frequently asked questions

What tank size is the Sobo AL-480 for?

It is designed for aquariums 50–60 cm long (about 2 ft), making it a good primary light for medium planted tanks.

Is the AL-480 good for planted tanks?

Yes. Its 21W full-spectrum COB output supports healthy growth of low- to medium-light plants and renders plant and fish colour vividly.

How many hours should I run it?

7–8 hours a day on a timer for a planted tank. Start lower and increase only if plants need it, to keep algae in check.

Does it need CO2?

Not for easy low-light plants. Add CO2 and regular dosing only for demanding plants, carpets or fast, lush growth.

Can I use it on a marine or fish-only tank?

Yes. It works as bright display lighting for tropical and marine tanks as well as planted setups.

Should I use a canopy or cover glass?

Yes, a glass or acrylic canopy is recommended to keep moisture off the light and extend its lifespan.

Setting up a planted tank? Read the complete aquarium light guide and the planted lighting guide, and match your light with the right fertiliser dosing for healthy, algae-free growth.