Lighting
ATI 36 Inch 39W True Actinic 03 T5HO Fluorescent Bulb
$21.99
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Product details
Product details
The ATI 36 Inch 39W True Actinic 03 T5HO Fluorescent Bulb is a T5 High Output (T5HO) fluorescent aquarium light designed to deliver a true actinic spectrum for enhancing the appearance of aquarium corals and other marine displays. In practical terms, it’s used as a dedicated actinic bulb within multi-bulb T5HO lighting fixtures to complement fuller-spectrum lighting and help bring out the vivid fluorescence many aquarists look for.
Features:
- T5HO fluorescent aquarium bulb from ATI (T5 High Output format).
- “True Actinic 03” wavelength profile intended for actinic lighting in marine setups.
- ATI’s newer-generation T5 bulbs use updated phosphors and manufacturing techniques to support higher output and more stable performance.
- Built for improved coloration compared with prior ATI generations, using upgraded phosphors.
- Designed to be a value-focused option many hobbyists choose for established T5 lighting setups.
- Works as a replacement bulb to maintain consistent lighting output in an existing T5HO fixture.
Specifications:
- Product name: ATI 36 Inch 39W True Actinic 03 T5HO Fluorescent Bulb
- Bulb type: T5HO fluorescent bulb
- Wattage: 39W
- Nominal length: 36 inch
- Length (including pins): 34"




