A500X Controllable LED Aquarium Light – Tuna Blue – Kessil



In stock

Certified (#AQ0358037) Department of Agriculture


The power, coverage, and penetration of metal halide, without the heat or energy consumption.

More capable than ever, the Kessil A500X LED light is able to easily handle the demands of big SPS-dominated systems. You can blanket your tank in dazzling light while mixing spectrum better than any other LED light on the market with Kessil’s dense matrix LED arrays and customized optics. Since the A500X will automatically change to a balanced spectrum for the light hue that you want to see, Kessil Logic makes it simple to alter the light for the best coral development and colouring. The amazing shimmer effect that Kessil lights provide while keeping consistent color mixing across the aquarium has long been well-known. We have used all types of Kessil LED lights over the years and have been very impressed with their quality, control, and lighting output.


  • Wide Coverage, Deep Penetration
  • Higher Photon Volume Density
  • Advanced Color Control
  • Light Shaping Capability
  • Smart Communication & Control

A strong 185W high intensity LED, the A500X was created exclusively for seasoned SPS coral growers. With the optional 35 degree reflector or the standard 55 degree reflector, you can change the beam of this premium A500X to give the light at the ideal spectrum and intensity for optical SPS coral growth, health, and colour.

Recommended Coverage – 36″ x 36″ for SPS Dominant Systems

Tuna Blue

Ideal for reef aquariums. The Tuna Blue can produce light in a range of hues, from a deep, rich blue to a brilliant natural daylight. The Dense Matrix LEDs have been tuned by Kessil to promote coral development and colors at their finest. You may pick the color you wish to see thanks to the customizable spectrum, and Kessil Logic provides a balanced spectrum and power output.

Superior Illumination

Coverage – The most recent Dense Matrix LED array and the newly created A500X optics work together to deliver light broadly and reduce shadowing.

Spectrum – Users of the well-known Tuna Blue spectrum have demonstrated that it encourages coral growth and improves colour. It guarantees constant power production and coral growth over the adjustable spectrum using Kessil Logic.

Shimmer – Your tank will appear to be sunny and lovely thanks to the Kessil shimmer effect, which is similar to the shimmer produced by Metal Halide fixtures. It is like to creating your own miniature ocean.

Penetration – A large number of LED chips are arranged into a single array using Kessil’s unique Dense Matrix LED technology to produce a powerful, penetrating light source with broad coverage. The typical 110-degree reflector may rise 24″ above the water’s surface in the majority of reefs.Further enhancing penetration is the use of the thin 55 or 35 degree reflectors, which may reach depths of up to 4 feet below the surface.

Color Mixing – One LED array allows for the smooth blending of various wavelengths, which emits consistent color over the coverage range and almost eliminates individual color separation.



Full-Color Spectrum – By utilizing the new Spectral Controller X or the Kessil WiFi Dongle, users may add Red, Green, and Purple (Violet+Indigo) to the well-known Tuna Blue spectrum.

Heat Management – All A500X lights include a unique heat management mechanism that increases durability and efficiency.

Dense Matrix LED – In comparison to rival fixtures, Kessils’ tightly packed LED array provides more high-quality light.



Wireless – Any A500X light may be controlled with the Kessil WiFi Dongle without the use of extra wires or hardware. Any Android or iOS phone may connect directly to the light by plugging the WiFi Dongle into the K-Link connection. The user-friendly software has a ton of options that enable you to perform everything from manual programming for photoshoots or just showing off your reef tank to daily automated programming for that purpose.

Hardwired – With its wealth of functions, the Kessil Spectral Controller X enables you to mimic the sun’s daily rise and fall. Although the Spectral Controller X is optional, pairing it with your A500X lights will open up new features and settings that will let you completely customize the lighting for your aquarium. With the K-Link Cable, you can even join many Kessil A500X LED Lights together for bigger tanks to create a continuous day-cycle between all the lights.

Technical Specifications

  • Dimensions: 3.7″ x 5.2″ / 9.4cm x 13.3cm
  • Unit Weight: 1.72lb / 0.78kg
  • Spectrum: Tuna Blue + Red + Green + Purple
  • Power Adapter: 100-240V AC 50-60Hz (input), 48V DC (output)
  • Power Consumption: AC 185W max


What’s Included?

1x A500X Tuna Blue

1x Power Adapter

1x AC Adapter Cable

1x Hanging Ring

2x Metal Screw Hook

2x Hanging Bracket

1x 55 degree Reflector