The Kessil A500X is a powerful 185 W high intensity LED designed specifically for experienced SPS coral growers. This fixture integrates the latest Dense Matrix LED technology with the proprietary Kessil Logic™ , and delivers a concentrated light with well blended spectrum for optimum SPS coral growth, health, and coloration. The beam of the A500X can be adjusted with optional 35 and 55 degree reflectors and allow SPS corals to thrive in a variety of environments. Controllable with manual knobs or Spectral Controller X. The unit can also be K-Linked with other X-Series fixtures.

Compatible with WiFi Dongle & mounting arm.



Technical Specifications:

Spectrum: Tuna Blue + Red + Green + Purple (Violet+Indigo)

Coverage:36"x36" (90 x 90 cm) for SPS dominant systems

Power Consumption: 185 W max.

Power Supply: 100-240V AC 50-60Hz (input), 48V DC (output)

Dimensions (H x D): 3.7” x 5.2” (94 mm x133 mm)

Unit Weight: 1.72 lbs / 780 g



Scope of delivery:

1x A500X

1x Power Adapter

1x AC Adapter Cable

1x Hanging Ring

2x Metal Screw Hook

2x Hanging Bracket

1x Reflector-55


Dense Matrix LED technology for superior illumination
Kessil’s patented Dense Matrix LED technology concentrates multiple LED chips into a single array, creating a powerful and penetrating light source with wide coverage and eliminating shading. The maximum penetration can reach up to 30" (75 cm) beyond the water's surface. Penetration can be further enhanced by positioning multiple units in close proximity to each other.

Kessil Logic™
Kessil Logic™ maintains persistent output across the entire adjustable spectrum (10,000 K to Actinic for Tuna Blue, 6.000 to 9.000K for Tuna Sun) and thereby also consistent coral and plant growth.

Color management / colour mixing
Different wavelengths are seamlessly blended within a single LED array, emitting uniform color across the coverage range.

Kessil blend of UV light
A proprietary blend of UV light enhances coral growth and color.