Lights · Planted LED
Fluval Plant 4.0 46W
Adjustable mounting range 35–49 in; maker publishes PAR through 18 in depth.
Current-generation app-controlled full-spectrum planted LED rated at 3,650 lm.
Consider: Operation depends on the app. Check phone compatibility before purchase, then measure the tank span against its 35–49 inch mounting range.
US version, item 16887. Check what’s in the box before you buy.
Fixture span
35 to 49 in
Choose your tank to see where it falls.
Check it against your tank →Specifications that affect fit
- Power
- 46 W
- Supply voltage
- 120 V / 60 Hz
- Dimensions
- 35 × 2.5 × 1 in (L × W × H)
- Published fixture size range
- 35–49 in
- Light reaching the plants (PAR)
- 700 at 3 in · 310 at 6 in · 130 at 12 in · 80 at 18 in below the light, by Fluval’s figures. Check it at your tank’s depth →
To see what it costs to run, enter the watts on its label and your daily hours in the electricity cost calculator.
Before choosing this model
- Match fixture span and tank depth.
- Compare published depth-specific PAR with plant demand.
- Confirm phone compatibility before depending on app-only controls.
A light that spans your tank can still be too weak for demanding plants: see how to choose one.
Check it against your tank → Something not working? See the troubleshooting guide.
Included items & upkeep
- light fixture
- extendable brackets
- height-adjustable riser brackets
- power supply
Plan for the routine work
- Keep the fixture and connectors within manual placement limits.
- Use a consistent photoperiod and observe plant and algae response.
To budget for replacement media and supplies, use the first-year cost calculator. For how often and how to clean it, follow the maker’s manual.