Dimmable SunPower

Time-Tested Proven Results + Control
PAR Light Spread

Proven Growth.
Proven Coloration.

Time-tested, proven results

The ATI Dimmable SunPower has been delivering proven results worldwide for more than five years. We recommend using ATI T5 bulbs in your fixture, which will help you produce significantly more light than most other T5 fixtures of the same size.

Active cooling system

Bulb life and bulb output are improved with our active cooling system to keep your bulbs at a more optimal operating temperature.

98% reflective miro-silver

Direct the light where your corals need it most with the 98% reflective miro-silver bent parabolic reflectors.

Simple & safe to use

Pick the T5 bulbs that are best for your needs, insert them, and plug in your fixture. ATI bulbs work in almost any combination to effectively grow corals, and since they're not a point-source of light like LEDs, you don't need to worry about adjusting different color channels, meaning there's less risk of burning your corals.
Controller for Dimmable SunPower

Built-in control

With 10 individual set-points, the built-in controller produces much more realistic dawn-dusk and daylight simulations than non-dimmable fixtures. The controller automatically adjusts from one set point to the next making programming a breeze and eliminating any intensity jumps.

Comparable efficiency

Our results speak for themselves. LEDs may have a great reputation for efficiency, but our T5 fixtures use a comparable amount of power. Make the switch with confidence.

Plug & play

Install bulbs. Apply power. Grow!


Fans are temperature controlled which typically results in a slower fan speed and less noise.

German design & engineering

Made in Germany with USA support when purchased through an authorized ATI North American reseller.


1 year warranty summary.
Get warranty details →


Item #Description# BulbsLengthWidthHeightCapacity
ATI330124” 4x24W Dimmable SunPower with Controller423.1 in.9.4 in.2.1 in.20-50 gallons
ATI330324” 6x24W Dimmable SunPower with Controller623.1 in.13.4 in.2.1 in.40-70 gallons
ATI330524” 8x24W Dimmable SunPower with Controller823.1 in.17.5 in.2.1 in.50-100 gallons
ATI330736” 4x24W Dimmable SunPower with Controller435.0 in.9.4 in.2.1 in.40-80 gallons
ATI330936” 6x24W Dimmable SunPower with Controller635.0 in.13.4 in.2.1 in.60-120 gallons
ATI331136” 8x24W Dimmable SunPower with Controller835.0 in.17.5 in.2.1 in.80-160 gallons
ATI331348” 4x24W Dimmable SunPower with Controller447.0 in.9.4 in.2.1 in.50-110 gallons
ATI331548” 6x24W Dimmable SunPower with Controller647.0 in.13.4 in.2.1 in.80-160 gallons
ATI331748” 8x24W Dimmable SunPower with Controller847.0 in.17.5 in.2.1 in.110-220 gallons
These are general guidelines only. Many factors, such as tank depth, types of corals and coral placement can affect individual lighting needs. Please contact your dealer if you need additional assistance to determine the appropriate size lighting fixture for your tank.

In the box

  • ATI Dimmable SunPower fixture
  • 6 foot power cord
  • Adjustable ‘grip-lock’ style hanging kit
Get the best performance out of the Dimmable SunPower with ATI T5 bulbs.