Boyu · Bar / clip-on
CB Ultrathin LED
- Made for tanks
- 50–90 cm tanks
- Power
- 26–55 W
Low-tech planted and community tanks where you just need decent white light.
5 models
Twinstar · Bar / clip-on
Twinstar A Series
Twinstar's entry-level light, a thin WRGB bar on an adjustable bracket so one unit can span a range of tank lengths. Output is modest, which makes it a fair match for fish-first tanks and easy plants rather than carpets.
Updated
11–44 W6 models
Will it suit my tank?
cm long
Best for
Beginners and low-tech tanks with hardy plants where a simple timer and dimmer is all you need.
Worth knowing
Not bright enough for demanding stem plants or carpets; version 1 units shipped without the controller.
What stands out
- Six sizes, each covering a range of tank lengths
- Balanced WRGB output at 6500 K
- Inline controller with 3 timer settings, 7 brightness levels and sunrise/sunset (version 2)
- Fits glass up to 10 mm
- Very low running cost
Models and specs
| Model | Made for tanks | Power | Output | Colour temp |
|---|---|---|---|---|
| 20ATWSA20 | 20–30 cm | 11 W | 770 lm | 6,500 K |
| 30ATWSA30 | 30–45 cm | 11 W | 770 lm | 6,500 K |
| 45ATWSA45 | 45–55 cm | 13.5 W | 837 lm | 6,500 K |
| 60ATWSA60 | 60–75 cm | 22 W | 1,390 lm | 6,500 K |
| 90ATWSA90 | 90–100 cm | 33 W | 2,050 lm | 6,500 K |
| 120ATWSA120 | 120–130 cm | 44 W | 2,500 lm | 6,500 K |
- Brand
- Twinstar
- Spectrum
- WRGB
- Colour temperature
- 6500 K
- Control
- Inline controller (timer, 7-step dimming, sunrise/sunset)
- Mounting
- Adjustable rim bracket
- Max glass thickness
- 10 mm
- LED lifespan
- 30,000 h
Figures from Glass Aqua's product listing. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
Browse all lights
Boyu · Bar / clip-on
ZN WiFi LED
- Made for tanks
- 45–90 cm tanks
- Power
- 40–72 W
Planted tanks from 45 to 90 cm where you want scheduling and colour control on a budget.
4 models
Chihiros · Bar / clip-on
A II Max
- Made for tanks
- 30–140 cm tanks
- Power
- 32–96 W
Medium-light planted tanks from nano to large that want a simple, bright, app-controlled bar at a fair price.
6 models
Chihiros · Bar / clip-on
B Series
- Made for tanks
- 20–120 cm tanks
- Power
- 12.7–51.3 W
Low to medium demand planted tanks and beginners who want app scheduling without spending much.
7 models
Frequently asked questions
Quick answers about the Twinstar A Series, drawn from its specs.
What size tank does the Twinstar A Series fit?
It comes in 6 sizes: 20A for 20–30 cm tanks, 30A for 30–45 cm tanks, 45A for 45–55 cm tanks, 60A for 60–75 cm tanks, 90A for 90–100 cm tanks, 120A for 120–130 cm tanks. Choose the one that matches your tank length.
How much power does the Twinstar A Series use?
From about 11 W on the smallest model to 44 W on the largest, at full output. Most planted tanks run lights below full power.
Who is the Twinstar A Series best for?
Beginners and low-tech tanks with hardy plants where a simple timer and dimmer is all you need.
Is there anything to watch out for with the Twinstar A Series?
Not bright enough for demanding stem plants or carpets; version 1 units shipped without the controller.
What are the alternatives to the Twinstar A Series?
Other lights worth comparing: Boyu CB Ultrathin LED, Boyu ZN WiFi LED, Chihiros A II Max. Add any of them to the compare table to see the specs side by side.