The Chihiros WRGB II Slim is an ultra-low-profile full-spectrum LED lighting system engineered for low-to-medium energy freshwater planted aquariums. Measuring just 15mm thick, the light panel is designed to blend seamlessly above rimless layouts without drawing visual attention away from the aquascape. Utilizing a specialized array of 3-in-1 RGB LED chips, it targets the complete color spectrum to aggressively drive photosynthesis in aquatic foliage while dramatically intensifying the natural red, green, and blue pigmentation of your fish and shrimp.
The WRGB II Slim features a built-in Bluetooth controller integrated directly into the aluminum chassis. It pairs instantly with the My Chihiros mobile app on iOS and Android devices, removing the need for external dimming hardware or inline timers. Through the app, you can completely customize the output curves by individually dialing the red, green, and blue intensity channels. It also manages 24-hour automation, allowing you to establish smooth, natural sunrise and sunset transitions.
Compared to the standard heavy-duty WRGB II model, the Slim Edition operates with a 40% to 50% reduced brightness profile. This intentional reduction makes it an excellent option for shallow tanks, setups focusing on slow-growing mosses or epiphytes (like Anubias and Bucephalandra), and hobbyists looking to prevent opportunistic algae blooms. The fixture features a hard-anodized black aluminum frame that serves as a passive heat sink. It includes adjustable stainless steel fixed sliding legs that lock firmly onto glass panels up to 10mm thick.
Technical Specification Breakdown by Size
Every variant in the WRGB II Slim line shares a standard panel width of 128mm and a thickness of 15mm. The physical length, power consumption, diode counts, and raw lumen outputs are divided by model size:
| Model Variant |
Ideal Aquarium Size |
Light Panel Length |
Built-in LED Count |
Maximum Power Draw |
Luminous Flux Output |
| WRGB II Slim 30 |
30 cm (11.8") |
284 mm (11.2") |
20 Pieces |
23 Watts |
1,200 Lumens |
| WRGB II Slim 45 |
45 cm (17.7") |
434 mm (17.1") |
30 Pieces |
35 Watts |
1,800 Lumens |
| WRGB II Slim 60 |
60 cm (23.6") |
584 mm (23.0") |
40 Pieces |
45 Watts |
2,400 Lumens |
| WRGB II Slim 90 |
90 cm (35.4") |
884 mm (34.8") |
60 Pieces |
69 Watts |
3,600 Lumens |
| WRGB II Slim 120 |
120 cm (47.2") |
1184 mm (46.6") |
80 Pieces |
90 Watts |
4,800 Lumens |
Key System Attributes & Box Inclusions
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Three-Channel Color Tuning: The My Chihiros app breaks down spectrum control into independent Red, Green, and Blue sliders. This allows you to fine-tune the visual aesthetics of the display, from a warm, golden morning look to an ultra-vivid, high-contrast afternoon setting.
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Stainless Steel Telescopic Legs: Shipped with adjustable metal side mounting bars that slide horizontally out of the main aluminum core. This extension capability allows each fixture to adapt to non-standard tank dimensions, extending the total coverage reach by an extra 10cm to 15cm on each side.
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Fanless Passive Heat Management: The deeply ribbed extruded aluminum top casing spreads thermal load over the entire footprint of the fixture. This configuration achieves silent passive cooling, eliminating mechanical fan whirring and moving components that can degrade in high-humidity rimless environments.
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What's Packaged Inside: Every factory box contains 1x WRGB II Slim series black anodized aluminum LED light panel with its integrated internal Bluetooth receiver, 2x adjustable sliding stainless steel mounting leg sets (including rim-locking thumb screws), and 1x universal multi-voltage external power brick with regional wall plug.
