An evolutionally-designed LED light, can be used as main lighting source for tank with no lighting, or as add-on light source for tank already having lighting.
Energy-saving LED lighting source, water-proof design, easily hide itself beneath tank cover.
Applicable to any tank with rim or no rim with slot or suction cups.
Rotatable lighting angle, easily adjust to give light to any place you want to highlight in your tank.
Mix of white and blue LEDs, 3-notch switch for all LED on, blue on only and all off, easily create replacement of daylight or nightlight.