ATI Aquaristic
T5 Bulb - 39w
$36
Options · choose one
SKU 4260216210105
Ships Australia-wide7 in stock
Dry goods ship Australia-wide with fast dispatch from Eastwood — or collect in store with the rest of your order.
SKU 4260216210105
SKU 4260216210105
Paid securely at checkout · ships Australia-wide (or collect in store)
Added — collect in store at Eastwood
- Ships Australia-wide — fast dispatch from Eastwood
- Or collect in store with the rest of your order
- Genuine stock — marine specialists since 2012
Overview
This ATI Aquaristic T5 Bulb (39W) is a replacement T5 fluorescent tube used to maintain proper spectrum and intensity in a compatible T5 lighting fixture.
T5 bulbs lose effective output and shift in spectrum well before they stop lighting up, so regular replacement is what keeps your corals getting the light quality they need.
Key features
- 39W output suited to compatible T5 fixtures
- ATI Aquaristic manufacturing, well regarded in the reef lighting space
- Direct replacement for ageing or spectrum-shifted bulbs
Who it's for
Anyone running a T5 fixture rated for 39W bulbs who needs a replacement to maintain proper spectrum and coral growth.
Setup & tips
- Replace on a schedule (commonly every 6–12 months) rather than waiting for the bulb to fail, as spectrum shifts before output visibly drops
- Stagger replacement of multiple bulbs in a fixture to avoid a sudden, drastic spectrum shift
- Handle the tube by its ends and avoid touching the glass with bare hands



