Overview
The ATI True Actinic 03 54-watt T5 lamp produces a violet-blue light that maximizes fluorescence in capable corals and makes livestock colors pop. Its spectrum peaks at 421nm, the range that drives vivid pigment response in reef systems. It is commonly added as a supplement to LEDs and metal halides, and works well for sunrise and sunset effects.
Key Features
- Violet-blue actinic light for maximum coral fluorescence
- Spectrum peaks at 421nm for vivid color response
- Makes coral and livestock coloration stand out
- Ideal supplement alongside LEDs and metal halides
- Great for sunrise and sunset lighting in T5 setups
Specifications
| Spec | Detail |
|---|---|
| Weight | 1 lbs |
| Wattage | 54 Watt |
| Spectrum Peak | 421nm |
| Brand | ATI |
| UPC | 4260216210112 |
Frequently Asked Questions
How many of these should I run per fixture?
Typically just one lamp per fixture is used to add extra fluorescence to the system.
Can I pair it with LEDs or metal halides?
Yes. It is recommended as a supplement to LEDs and metal halides and is often used for sunrise and sunset applications.


























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