Freshwater Aquarium Light

Tuna Sun

Low Profile. Advanced Color Control. Smart Communication

What’s New?

More Color
Low Dimming
Light Shaping

Higher Photon Volume Density

Comparing to other lights, A360 has a lower profile design with higher light output over a larger area, thanks to the redesigned, first-class, sunflower heat sink.

Advanced Color Control

A360 has more color control, opening unlimited color combinations for aesthetics while maintaining the performance of the core spectrum

Low Dimming & Improved Transitioning

A360 features smoother color transitioning and ultra low dimming

Smarter Communication

The new K-Link communication method is an upgrade of the easily plug & play 0-10V, allowing users to network multiple A360 together and set individual groups to run their own programs.

Light Shaping Capability

Narrow Reflector can be used to increase penetration power and to strengthen contrast, depth, and dynamics in aquariums

Superior Illumination

Color Mixing


The newly designed optics along with the latest generation Dense Matrix LED array provide a broader delivery of light and eliminate shading.


The well-known Tuna Sun spectrum has been proven by its users to promote plant growth and enhance coloration. With Kessil Logic™, it ensures consistent power output and plant growth across the tunable spectrum.


The Kessil shimmer effect gives your tank a beautiful, natural, sunlit look comparable to the shimmer of a Metal Halide fixture. It is like replicating your own piece of the ocean.


Patented Dense Matrix LED technology concentrates multiple LED chips into a single array, creating a powerful and penetrating light source with wide coverage. The maximum penetration can reach 24" to 30" beyond the water's surface for most reefs. Penetration can be further enhanced by using the narrow reflector (optional accessory).

Color Mixing

Different wavelengths are seamlessly blended within a single LED array, emitting uniform color across the coverage range.



Full Color Spectrum

In addition to the popular Tuna Sun spectrum, users can add in Red and Amber by using the Kessil WiFi Dongle or Spectral Controller

Try it!


Heat Management

Our innovative heat management system enhances longevity and efficiency.

Dense Matrix LED

Our densely-packed LED array emits more high-quality light than competing fixtures.

Kessil Technologies


Compatible with the Kessil WiFi Dongle or Spectral Controller . Connect multiple lights for seamless control from a single source.

Manual Mode

Instantly tune color and intensity for on demand light customization.

Quick Set

Create unique dawn and dusk effects by altering light intensity and color throughout eight different time points.


Simplify the introduction of new lights to a tank or new corals to an existing setup with acclimation mode. The acclimation timeline can be customized to suit specific needs.


Technical Specifications

Dimensions ( H x D ) 2.1" x 4.3" / 5.3cm x 11cm
Unit Weight 0.8lb / 0.37kg
Spectrum 6,000K to 9,000K + RY
Coverage 24" x 24" Mixed Reef / Moderately Planted
20" x 20" SPS & Heavily Planted & Refugium
Power Adapter 100-240V AC (input), 19V DC (output)
Power Consumption 90W max

    What's in the Box

  • 1x A360X

  • 1x Power Adapter

  • 1x AC Adapter Cable

  • 1x DC Extension Cable

  • 1x Hanging Ring

  • 2x Metal Screw Hook

  • 2x Hanging Bracket




Compatible with