HOMEProductsHobbyist Products

Saltwater Aquarium Light

AP9
Crafted for Excellence



Superior Illumination

Coverage
Spectrum
PAR Efficient
Shimmer
Penetration
Dimming
Previous

Expanded Spread

Up to 48” even light distribution coverage, Boosting 10% more light output


Perfect Spectrum & Advanced Color Control

In addition to the popular Tuna Blue Spectrum, the AP9XE has 4 additional color channels for maximum control. Dial in Violet, Indigo, Red or Green to make your tank pop. Kessil Logic™ ensures that cosmetic color settings do not interfere with the core spectrum, allowing users to dial in a preferred color without disturbing coral health.

PAR Efficient

PAR measures all visible light (400–700nm), but coral health relies on violet and royal blue wavelengths. Kessil LEDs focus on these essential wavelengths, prioritizing coral growth over inflated PAR numbers.


Signature Shimmer

The signature Kessil shimmer effect gives your tank a beautiful, natural, sunlit look comparable to a Metal Halide fixture.


Reef Penetration

57 LED chips in a single array create a powerful light source reaching up to 30" beyond the water's surface for most reefs.


Advanced Dimming

Mimic natural day/night cycles and lunar phases with smooth dimming down to 0.1%—from a gentle sunrise to the faintest moonlight.


Total Control

Complete Cloud Control & Remote Management


Kessil's new IoT platform allows maximum control and customization from anywhere in the world, no app required.

Shareable Schedules & Preset Library


Export your custom lighting schedules to back up your personal settings or share your winning coral growth recipes with friends and the reefing community.

Never lose your carefully dialed-in acclimation ramps or seasonal spectrum curves—your profile library is safely backed up in your cloud account.

LFS Guest Access & Expert Collaboration


Grant temporary, secure access permissions to your Local Fish Store (LFS) or aquarium service provider so they can fine-tune your schedules without needing a house call.

You control the access level—delegate full programming capability or restrict access to specific schedule adjustments and acclimation timers.

System Backups & Advanced Controls


Safely save your entire system configuration to the cloud and restore your custom lighting profiles to new or replacement fixtures with a single tap.

Replicate true night-sky lunar phases automatically based on real time, while managing, naming, and grouping multiple fixtures effortlessly from one simple dashboard.

Crafted for Excellence

Robust
mount
LED
link
Previous

Ecosystem Expansion & Port Connectivity

Maintain full compatibility with third-party aquarium controllers while preserving stable, zero-bandwidth physical wired connections across multi-fixture setups.

Mounting Systems & Flexibility

180° Pan rotation and 60° Tilt rotation

Superior & Perfect Color Mixing

Our patented Dense Matrix Array allows us to pack 57 LED chips into a space smaller than a quarter. With 114 LED chips in two arrays, the AP9XE has the best color mixing in the industry—no diffuser necessary and no disco-ball effect!

Kessil Technologies

Daisy-Chaining & Hardware Ports

The K-Link and 0-10V ports allow you to connect different Kessil lights and control them using the new IoT platform, bringing the most up-to-date control to your legacy lights.

Technical Specifications

Dimensions ( L x W x H ) 16.46" x 5.71" x 1.42" / 41.8cm x 14.5cm x 3.6cm
Unit Weight 2.29lb / 1.04kg
Spectrum Tuna Blue + Red + Green + Purple (Violet + Indigo)
Coverage Up to 48” x 24” Mixed Reef / 36" x 24" for SPS Dominant Systems
Operating Frequency IEEE 802.11b/g/n(2.4GHz) & IEEE 802.11a/ac(5GHz)
Network Encryption Type WPA-PSK / WPA2-PSK
(Does not support WEP, WPA-Enterprise, WPA2-Enterprise, and Monitor Mode.)
Power Adapter 100-240V AC 50-60Hz (Input), 48V DC (Output)
Power Consumption 185W max AC

    What's in the Box

  • 1x AP9XE

  • 1x Power Adapter

  • 1x Adapter Cable

  • 4x Metal Screw Hook & Hanging Bracket

  • 3x QR Code Stickers

Separator

Compatible with

AP9X / AP9XE Mounting Arm
AP9X Mounting Arm Extended Slide Bar
Hanging Kit
Mounting Arm
Spectral Controller X
Kessil Cables