A light that stays on all day stresses fish and feeds algae growth. One that never gets switched off at night leaves the tank without a real rest cycle. This submersible light handles both problems with a built-in controller: three lighting modes, brightness adjustable from 10% to 100%, and three timer programs that ease brightness up and down like a natural day-night cycle.
Low-voltage input, a triple-layer IP67 waterproof housing, and a suction-cup base round out the design: no drilling, no bracket, and repositioning takes seconds.
IP67 covers dust and temporary submersion under standard test conditions. For unusually deep tanks or continuous full-depth submersion, confirm the exact depth and duration rating with your supplier before purchase.
Key Features
High-CRI LEDs for accurate color Color accuracy affects how the tank actually looks once the light is on. These LED chips render fish, plants, and substrate close to their natural color rather than washed out or blue-tinted - useful both for everyday viewing and for photos or video of the tank.
Low-voltage operation Running mains voltage directly underwater raises both heat and safety concerns. This unit runs on low voltage instead, which keeps operating temperature down and extends the working life of the LED array.
Triple-layer IP67 waterproof housing The LED module, internal wiring, and controller connection are sealed in three separate layers - the difference between a genuine submersible fixture and a splash-resistant one. Seal cable connections properly at installation for the best long-term result, since IP67 rates dust and temporary submersion, not unlimited depth or duration.
Company Introduction
The assembly workshop is 25 meters long and 35 meters wide, with a total of 5 running water pulls, mainly responsible for the assembly, assembly, testing and packaging of fish tank lamps, water pumps, air pumps and heating pumps.
Packaging workshop: there are 3 packaging pulls, mainly responsible for testing and packaging of finished products.
Built-in controller: 3 modes, 10–100% brightness Three lighting modes and a brightness range from 10% (a dim nano-tank night setting) to 100% (full daytime output for a heavily planted display), controlled from one unit.
3 timer modes for a sunrise-to-sunset cycle Rather than a hard on/off switch, brightness ramps up and down through three programmable timer modes that approximate natural daylight change. Fish behavior and plant photoperiods stay more consistent without manual adjustment morning and night.
Memory function The last brightness level, lighting mode, and timer setting are saved through a power outage or unplugging, and the tank's program resumes automatically once power returns - no resetting to default.
Suction-cup mount No drilling, no fixed bracket. The suction base attaches directly to the glass and repositions in seconds, so testing a few placements for coverage or viewing angle doesn't mean redoing the setup.
Built for freshwater tanks Spectrum, housing materials, and sealing are designed and tested specifically for freshwater aquariums and planted tanks - not adapted from a reef or saltwater fixture.
Specifications
Eight sizes cover tanks from 20cm to 115cm.
|
Model |
Power |
LEDs |
Input Voltage |
Dimensions |
Qty/Carton |
Tank Length |
|
ATL-18 |
2.7W |
18 |
110–240V AC |
Ø2.4 × 19cm |
50 |
20–40cm |
|
ATL-30 |
4.3W |
30 |
110–240V AC |
Ø2.4 × 28cm |
50 |
30–50cm |
|
ATL-42 |
5.8W |
42 |
110–240V AC |
Ø2.4 × 37cm |
50 |
40–60cm |
|
ATL-57 |
7.8W |
57 |
110–240V AC |
Ø2.4 × 47cm |
50 |
50–70cm |
|
ATL-66 |
9.8W |
66 |
110–240V AC |
Ø2.4 × 58cm |
40 |
60–80cm |
|
ATL-72 |
10.8W |
72 |
110–240V AC |
Ø2.4 × 62cm |
40 |
65–85cm |
|
ATL-84 |
11.7W |
84 |
110–240V AC |
Ø2.4 × 74cm |
20 |
80–100cm |
|
ATL-96 |
12.7W |
96 |
110–240V AC |
Ø2.4 × 92cm |
20 |
95–115cm |
Tank length is the main sizing factor - pick the model closest to your tank's full length for even coverage.
FAQ
Is it actually safe to leave this underwater long-term? Yes - low-voltage operation plus a triple-layer IP67 housing are built for continuous submersible use. For unusually deep tanks, check the exact depth rating with your supplier first.
How does the sunrise-to-sunset timer work? Brightness ramps gradually rather than switching abruptly, with three programmable modes covering different ramp speeds and cycle lengths.
What happens to my settings during a power outage? Brightness, lighting mode, and timer program are all saved and restored automatically once power returns.
Can this go in a saltwater or reef tank? No - it's designed and tested for freshwater use. A reef or saltwater setup needs a fixture built around that spectrum and sealing spec.
Which model fits my tank? Match tank length to the table above - a 40–60cm tank pairs with the ATL-42, an 80–100cm tank with the ATL-84.
Bulk & Private-Label Orders
Available customization for qualifying orders, within MOQ and engineering limits:
Logo, housing color, packaging design
Input voltage and plug type by destination market
Cable length
LED count and brightness range per model
Number of lighting modes and timer presets
Controller layout, or an added remote-control option
Retail packaging, manual, and carton marking language
A pre-production sample is checked before each production run - waterproof sealing, timer accuracy, memory function, brightness range, and suction grip are all tested before full-batch manufacturing begins.
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