Kessil A500X Tuna Blue LED Aquarium Light

Product details

Kessil A500X Tuna Blue LED Aquarium Light is a controllable, high-intensity reef LED fixture designed for saltwater aquariums—especially those keeping photosynthetic corals that benefit from strong, targeted lighting. In practical terms, it’s used to provide a dense, blended spectrum and adjustable beam control, helping you aim light more precisely across your tank from above the waterline. ([seasideaquatics.com](https://www.seasideaquatics.com/home/3739-kessil-a500x-tuna-blue-led-aquarium-light.html))

Features:

• High-intensity 185W LED output with Kessil Logic and Dense Matrix LED technology for a concentrated, even light profile. ([seasideaquatics.com](https://www.seasideaquatics.com/home/3739-kessil-a500x-tuna-blue-led-aquarium-light.html))
• Tuna Blue model spectrum combines Tuna Blue with Red, Green, and Purple (Violet/Indigo) for a blended reef-focused output. ([kessil.com](https://kessil.com/support/choosing.php?utm_source=openai))
• Adjustable beam control: included 55° reflector narrows the light, with optional 35° reflector available for a different penetration/spot profile. ([seasideaquatics.com](https://www.seasideaquatics.com/home/3739-kessil-a500x-tuna-blue-led-aquarium-light.html))
• Designed for flexible control options, including manual knobs and compatibility with Spectral Controller X and WiFi dongle. ([tunze.com](https://www.tunze.com/fileadmin/downloads_en/Kessilkatalog_2023_E.pdf?utm_source=openai))
• Mounting guidance depends on reflector choice; Kessil provides example mounting-height ranges when setting up an SPS-dominant/reef-style layout. ([kessil.com](https://kessil.com/support/faq.php?utm_source=openai))

Specifications:

• Power consumption: 185 W maximum ([tunze.com](https://www.tunze.com/fileadmin/downloads_en/Kessilkatalog_2023_E.pdf?utm_source=openai))
• Spectrum (Tuna Blue model): Tuna Blue + Red + Green + Purple (Violet/Indigo) ([kessil.com](https://kessil.com/support/choosing.php?utm_source=openai))
• Input / output: Input: 100–240 V AC; Output: 48 V DC ([tunze.com](https://www.tunze.com/fileadmin/downloads_en/Kessilkatalog_2023_E.pdf?utm_source=openai))
• Dimensions (H × Ø): 3.7 in × 5.2 in (94 × 133 mm) ([tunze.com](https://www.tunze.com/fileadmin/downloads_en/Kessilkatalog_2023_E.pdf?utm_source=openai))
• Weight: 1.72 lb (780 g) ([tunze.com](https://www.tunze.com/fileadmin/downloads_en/Kessilkatalog_2023_E.pdf?utm_source=openai))
• Reflectors: Includes Reflector-55°; optional Reflector-35° available separately ([tunze.com](https://www.tunze.com/fileadmin/downloads_en/Kessilkatalog_2023_E.pdf?utm_source=openai))
• Example mounting height from water surface: No reflector: 6–10 in; 55° reflector: 12–24 in; 35° reflector: 24–36 in ([kessil.com](https://kessil.com/support/faq.php?utm_source=openai))