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
Chihiros · Bar / clip-on
Chihiros WRGB II Slim
A thinner, lower-output take on the WRGB II with full colour control in the app. At about 1.5 cm thick, it disappears over a rimless tank and suits most planted setups from low to fairly demanding.
Updated
23–90 W5 models
Will it suit my tank?
cm long
Best for
Everyday planted tanks where you want RGB colour tuning and a very low-profile fixture.
Worth knowing
Roughly half the output of the WRGB II Pro, so it is less suited to deep high-tech tanks.
What stands out
- Five sizes from 30 cm to 120 cm
- WRGB with app control of colour and brightness
- About 1.5 cm thick
- Shade and hanging kit available
Models and specs
| Model | Made for tanks | Length | Power | Output |
|---|---|---|---|---|
| Slim 30CHSS301 | 30 cm | 28.4 cm | 23 W | 1,200 lm |
| Slim 45CHSS451 | 45 cm | 43.4 cm | 35 W | 1,800 lm |
| Slim 60CHSS601 | 60 cm | 58.4 cm | 45 W | 2,400 lm |
| Slim 90CHSS901 | 90 cm | 88.4 cm | 69 W | 3,600 lm |
| Slim 120CHSS1201 | 120 cm | 118.4 cm | 90 W | 4,800 lm |
- Brand
- Chihiros
- Spectrum
- WRGB
- Control
- Bluetooth app (MyChihiros)
- Dimming
- Yes, with timers and effects
- Mounting
- Rim legs (hanging kit optional)
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
Eheim · Bar / clip-on
powerRGB
- Made for tanks
- 78.7–125.4 cm tanks
- Power
- 21.9–30.7 W
Tanks that already have a white main light and where you want richer reds and greens, or smooth dawn and dusk.
3 models
Juwel · Bar / clip-on
HeliaLux Spectrum
- Made for tanks
- 53.4–149.2 cm long
- Power
- 27–60 W
Juwel tank owners who want to grow a wider range of plants than the stock MultiLux allows.
8 models
Frequently asked questions
Quick answers about the Chihiros WRGB II Slim, drawn from its specs.
What size tank does the Chihiros WRGB II Slim fit?
It comes in 5 sizes: Slim 30 for 30 cm tanks, Slim 45 for 45 cm tanks, Slim 60 for 60 cm tanks, Slim 90 for 90 cm tanks, Slim 120 for 120 cm tanks. Choose the one that matches your tank length.
How much power does the Chihiros WRGB II Slim use?
From about 23 W on the smallest model to 90 W on the largest, at full output. Most planted tanks run lights below full power.
Who is the Chihiros WRGB II Slim best for?
Everyday planted tanks where you want RGB colour tuning and a very low-profile fixture.
Is there anything to watch out for with the Chihiros WRGB II Slim?
Roughly half the output of the WRGB II Pro, so it is less suited to deep high-tech tanks.
What are the alternatives to the Chihiros WRGB II Slim?
Other lights worth comparing: Boyu CB Ultrathin LED, Boyu ZN WiFi LED, Eheim powerRGB. Add any of them to the compare table to see the specs side by side.