Fluval Flex LED Aquasky Fresh. Light 123ltr 21w
Wattage
21 W
Water type
Freshwater
Fits
Fluval Flex 32.5 US Gal (123 L) Aquarium
Part no.
14549
Fluval Flex LED Aquasky Fresh. Light 123ltr 21w
Genuine replacement Aquasky LED for the Fluval Flex 123 L. This is the factory freshwater lighting unit for the Fluval Flex 32.5 US Gal (123 L) aquarium — a 21 W fixture combining warm-white and full-colour RGB LEDs, controlled from the FluvalSmart app over Bluetooth. If the lamp on your Flex 123 L has failed, flooded, or lost colour control, this restores it to factory condition.
Key features
- 21 W LED array — 6500K white LEDs for daytime viewing, plus independently adjustable RGB LEDs for colour and effects.
- FluvalSmart app control — set colour, brightness and timing from a phone over Bluetooth; no separate controller needed.
- Weather effects — cloud cover, thunderstorm and moonlight simulation, layered over the normal daily cycle.
- 24-hour programmable cycle — sunrise-to-sunset ramping runs automatically once set.
- Direct-fit replacement — genuine Fluval part, drops into the existing Flex 123 L lid with no modification.
Specifications
| Spec | Value |
|---|---|
| Wattage | 21 W |
| Fits | Fluval Flex 32.5 US Gal (123 L) aquarium |
| LED type | 6500K white + adjustable RGB |
| Control | Bluetooth via FluvalSmart app |
Fluval does not publish a PAR-at-depth chart for the Aquasky range, so no light-intensity table is included here — this is a colour-and-viewing light rather than a dedicated plant-growth fixture. If you're growing demanding plants in a Flex 123 L, ask us about the Fluval Plant 3.0 option before assuming this will be strong enough.
Will it fit my tank?
This lamp is sized specifically for the Flex 32.5 US Gal (123 L) aquarium and its lid. It does not fit the Flex 34 L or 57 L — see our separate listings for those sizes.
What's included
The LED lamp unit only. The power supply/transformer is not included — check yours still works before ordering; if it's the transformer that has failed rather than the lamp, that's a separate part.
Suitable for, and not suitable for
Suitable for freshwater Fluval Flex 123 L tanks, including light to moderate live planted setups. Not a dedicated plant-growth light — if your tank is heavily planted with high-light species, the fixed 21 W output may be a limiting factor.
Care and maintenance
Wipe the lens with a soft, dry cloth — do not submerge it or spray cleaner directly onto the unit. Keep the lid vents clear of salt creep or condensation build-up, which can shorten LED life.
Safety
Mains-powered via the Flex's low-voltage transformer (240 V / 50 Hz AU supply). Do not operate with a damaged lens or exposed wiring, and always disconnect power before removing the lamp for cleaning or replacement.
Warranty and delivery
Covered by Fluval's standard warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Standard freight applies.
Common questions
Will this fix a Flex light that won't turn on at all?
Check the transformer and connection first — a lamp that is completely dead, with no LEDs lighting at all, is as likely to be the power supply as the lamp itself. If individual LEDs have failed or the colours won't respond to the app, this lamp is the fix.
Does it work with the FluvalSmart app on both iOS and Android?
Yes, the FluvalSmart app is available for both.
Can I dim it without the app?
No — this fixture is controlled entirely through Bluetooth and the FluvalSmart app; there's no physical dimmer or remote.
Is this the marine version?
No. This is the freshwater Aquasky unit. The saltwater equivalent is the Fluval Marine 3.0 for Flex 123 L, sold separately.
