Sobo T4-30 Aquarium Submersible Lamp 5.5W
The Sobo T4-30 is a 5.5W fully-submersible LED aquarium lamp for tanks 30–40 cm long, designed to sit underwater inside the tank and deliver bright light that deepens plant colour and makes red fish, shrimp and red-leaved stem plants stand out. Its sealed, waterproof tube mounts horizontally on suction cups, making it a versatile primary or accent light and a popular budget pick for small planted and display aquariums in India.
Why choose the Sobo T4-30?
- Fully submersible, sealed design for underwater use, easy to position low in the tank.
- 5.5W energy-saving LED sized for 30–40 cm tanks.
- Rich colour rendering that lifts reds, greens and fish colour.
- Low power draw and low heat, with a long service life.
- Suction-cup mounting for back-lighting or general illumination.
Specifications
| Brand | Sobo |
| Model | T4-30 |
| Power | 5.5 watts |
| Type | Submersible LED tube |
| Mounting | Suction cups (inside tank) |
| Suitable tank length | 30–40 cm |
| Best for | Small planted, tropical and display tanks |
Which tanks is it best for?
The T4-30 suits tanks 30–40 cm long. As a submersible tube it works as bright back-lighting or accent lighting and as a primary light for low-light plants and small display tanks. For demanding plants, a top-mounted planted light gives more even coverage; see our planted aquarium lighting guide.
How to use it
Fix the lamp inside the tank on its suction cups, fully submerged, and run it 6–8 hours a day on a timer. Always include a dark night period and keep the tank out of direct sun to control algae. Handle and connect it with the power off and a drip loop on the cable. See waterproof and submersible aquarium lights.
Frequently asked questions
Is the Sobo T4-30 fully submersible?
Yes. It is a sealed, waterproof LED tube made to run underwater inside the aquarium on suction cups.
What tank size is it for?
Tanks 30–40 cm long. Larger tanks suit the T4-40 or T4-50; the smallest tanks the T4-20.
Can it grow plants?
It supports easy low-light plants and makes plant colour vivid. For demanding plants choose a stronger top-mounted planted light.
How many hours should I run it?
6–8 hours a day on a timer, with a dark night period to limit algae.
Where should I place it?
Mount it low or along the back on suction cups for back-lighting, or position it for general illumination.
Choosing a light? Read the complete aquarium light guide and what size aquarium light do I need.
Shipping & Returns
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