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ATI T5 Bulbs

High-Output Fluorescent Bulbs

Since their introduction in 2000, ATI T5 bulbs have been at the forefront of T5 bulb technology. Today's ATI T5 bulbs are no exception. Continuing the tradition of excellence, ATI uses the latest advances in phosphors (to emit light) and manufacturing techniques to produce bulbs with higher output, better coloration, and more stability. ATI bulbs are also very affordable, making them the preferred choice of experienced hobbyists around the world.

ATI AquaBlue Special T5 Bulb Spectrum ChartAquablue Special

Combines the properties of a full-spectrum bulb with an elevated blue color peak producing a bulb with an approximate color temperature of 15,000K. Recommended as a stand-alone bulb or in combination with Blue Plus, Purple Plus, True Actinic, or other supplemental T5 bulbs.


ATI Purple Plus T5 Bulb Spectrum ChartCoral Plus

Combines the properties of a Blue Plus (~50%), Aquablue Special (~40%) and Purple Plus (~10%) producing a bulb with a cool, crisp white color with hints of red and blue. The higher blue component compared to an Aquablue Special produces better fluorescence in capable corals and the red component is excellent for color rendition. Approximate color temperature: 15000K+. Recommended Use: As a stand-alone bulb or in combination with Blue Plus, Purple Plus, True Actinic or other supplemental T5 bulbs.


ATI Blue Plus T5 Bulb Spectrum ChartBlue Plus

Combines the properties of a blue bulb (approximately 460nm) with an actinic bulb (approximately 420nm), producing an intense blue light with high PAR numbers and a light spectrum that encourages both bluing in SPS corals and fluorescence in capable corals. Also helps balance a washed out/ yellow-hued tank. Recommended as a supplement to metal halides or in combination with Aquablue Special, Purple Plus, or other full spectrum T5 bulbs. Can also be used for dawn/dusk applications. (Similar to KZ Super Blue)


ATI True Actinic T5 Bulb Spectrum ChartTrue Actinic

Produces a violet-blue light that is designed to maximize fluorescence in capable corals and make livestock colors pop. Color spectrum peaks at 421nm. Recommended as a supplement to metal halides or in combination with other T5 bulbs. Can also be used for dawn/dusk applications.


ATI Purple Plus T5 Bulb Spectrum ChartPurple Plus

Combines the properties of a full-spectrum bulb with strong red and blue components, producing a bulb with excellent color rendition that works very well to bring out pinks, purples and reds in an aquarium. Recommended in combination with at least two or more other T5 bulbs, like the Blue Plus and Aquablue Special. Not recommended as a stand-alone bulb. (Similar to KZ Fiji Purple)


Item # Description Length
ATI1101 24W Aquablue Special 22.2 inches
ATI1103 39W Aquablue Special 34.0 inches
ATI1105 54W Aquablue Special 45.8 inches
ATI1107 80W Aquablue Special 57.6 inches
ATI1109 24W Blue Plus 22.2 inches
ATI1111 39W Blue Plus 34.0 inches
ATI1113 54W Blue Plus 45.8 inches
ATI1115 80W Blue Plus 57.6 inches
ATI1117 24W True Actinic 22.2 inches
ATI1119 39W True Actinic 34.0 inches
ATI1121 54W True Actinic 45.8 inches
ATI1123 80W True Actinic 57.6 inches
ATI1125 24W Purple Plus 22.2 inches
ATI1127 39W Purple Plus 34.0 inches
ATI1129 54W Purple Plus 45.8 inches
ATI1131 80W Purple Plus 57.6 inches
ATI1133 24W Coral Plus 22.2 inches
ATI1135 39W Coral Plus 34.0 inches
ATI1137 54W Coral Plus 45.8 inches
ATI1139 80W Coral Plus 57.6 inches

We've included some helpful information and downloads below. For further assistance, please contact us.

ATI T5 Bulbs Datasheet

Instructional Videos

How To Determine If You Have
a Faulty Bulb or Ballast
Item # Product Part Description Spec Retail  
ATI3202 ATI bulbs Reflector (Bent Reflector) 24W $ 16.95
ATI3204 ATI bulbs Reflector (Bent Reflector) 39W $ 17.95
ATI3206 ATI bulbs Reflector (Bent Reflector) 54W $ 18.95
ATI3208 ATI bulbs Reflector (Bent Reflector) 80W $ 19.95
ATI3209 ATI bulbs T5 Socket (Each)   $ 1.95
ATI3211 ATI bulbs T5 High-Output Ballast (2x24W / 2x39W) 24W / 39W $ 39.95
ATI3213 ATI bulbs T5 High-Output Ballast (2x54W) 54W $ 39.95
ATI3215 ATI bulbs T5 High-Output Ballast (2x80W) 80W $ 44.95
ATI3217 ATI bulbs Endplates (Set of 2) 4 Bulb $ 19.95
ATI3219 ATI bulbs Endplates (Set of 2) 6 Bulb $ 24.95
ATI3220 ATI bulbs Endplates (Set of 2) 8 Bulb $ 29.95
ATI2101 ATI bulbs Cable Hanging Kit (5 ft) $ 34.95
ATI2103 ATI bulbs Cable Hanging Kit (10 ft) $ 39.95
ATI2121 ATI bulbs AC Adapter $ 12.95
ATI3221 ATI bulbs Cooling Fan Except 8x54W; 8x80W $ 14.95
ATI3223 ATI bulbs Cooling Fan 8x54W / 8x80W $ 14.95
ATI3223 ATI bulbs Fan Cover Except 8x54W; 8x80W $ 5.95
ATI3225 ATI bulbs Fan Cover 8x54W / 8x80W $ 5.95