COVOART 15 Inch Submersible RGB LED Aquarium Light

The COVOART 15 inch LED Aquarium Light is a 2.5W crystal-glass light bar that goes inside the tank. It is rated IP68, so the whole bar can sit fully submerged, and two suction cups hold it and its cable against the glass. It is a decorative accent light rather than the main light for a planted tank.

What the remote controls

The bar carries 21 LED beads. A remote switches between 12 colors and 19 modes, and brightness is adjustable. The fixture has a memory function, so it returns to the last saved setting after it is switched off. COVOART says the remote does not need to be pointed straight at the receiver.

Low-voltage power

It runs on 12V low voltage. That still means the plug, adapter and any cable connections must stay dry and outside the tank. Leave a drip loop in the cord below the outlet so water running down the cable cannot reach the socket.

Where it makes sense

• Placing color behind rockwork or along the back glass
• Night viewing on a fish-only tank with dim blue or purple
• Small ponds, fountains or display containers where a bar under water is easier than an overhead fixture

What it will not do

At 2.5W this bar is about showing off color, not driving photosynthesis. Planted tanks still need a proper overhead fixture such as the hygger 24/7 planted light. Use the COVOART as a second light for mood, and keep the flashing and fast color-change modes for short periods; most fish settle better under steady light with a clear day and night.

Placement tips

Mount it low and behind decor so the bar itself is hidden and only the glow shows. Check the suction cups every few weeks, as they can loosen over time. Wipe algae off the glass tube during water changes so the output stays even.