Blue pet Flat Nano S4 WRGB High Penetration Aquarium Light - 16W
The Blue pet Flat Nano S4 is a 16W WRGB high-penetration LED aquarium light for planted nano and small tanks, using white, red, green and blue diodes to deliver a full spectrum that drives plant growth and makes fish and plant colours vivid. Its slim flat profile sits low over the tank on adjustable brackets, and the WRGB mix gives richer, more natural colour rendering than plain white LEDs — a strong, good-value colour light for aquascapers.
Why choose the Blue pet Flat Nano S4?
- WRGB full-spectrum diodes (white + red + green + blue) for vivid colour and healthy growth.
- 16W high-penetration output that pushes light deep, even in densely planted tanks.
- Slim flat design that looks tidy on nano and small aquariums.
- Adjustable mounting brackets for a range of tank widths.
- Energy-efficient with strong, even brightness.
Specifications
| Brand | Blue pet |
| Model | Flat Nano S4 |
| Power | 16 watts |
| LED type | WRGB (white, red, green, blue) full spectrum |
| Type | Flat / nano high-penetration LED |
| Best for | Planted nano and small aquariums |
Which tanks is it best for?
The S4 suits planted nano and small aquariums where you want vivid WRGB colour and strong penetration in a slim fixture. Its 16W output suits low- to medium-light plants and gives more punch than the 10W Flat Nano S3. For demanding plants add CO2 and dosing. Learn the colour options in WRGB vs RGB vs full spectrum and see our planted aquarium lighting guide.
How to use it
Mount the light across the tank on its brackets and run it 7–8 hours a day for a planted tank, on a timer. Always include a dark night period and keep the tank out of direct sun to control algae. See how many hours should aquarium lights be on.
Frequently asked questions
What does WRGB mean?
White, red, green and blue diodes combined. The mix gives richer colour rendering and strong plant growth versus plain white LEDs.
What tank size is the S4 for?
Planted nano and small aquariums. Its 16W output gives more penetration than the 10W S3.
Is it good for planted tanks?
Yes. The full-spectrum WRGB output supports photosynthesis and makes greens and reds vivid.
How is it different from the S3?
The S4 is 16W for stronger output and penetration; the S3 is 10W for smaller nano tanks.
How many hours should I run it?
7–8 hours a day on a timer for a planted tank, with a dark night period.
Choosing a colour light? Read the aquarium light guide and the planted lighting guide.
Shipping & Returns
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
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