Lifegard 2.5" Clip-On Blue Spectrum USB LED Light with In-Line Controller with 28 Bright Blue LEDs is perfect for any Nano Aquarium for Mini Reefs or Glow in the Dark Fish. The easy to use in-line four-way button controller allows you to can create an ideal environment for your fish. The controller gives you the control to adjust the light intensity with just a touch of button —it can increase or decrease the brightness to meet the specific needs. But that's not all this light is also dimmable giving you the ability to create the perfect Ambience for your fish with a simple press that you can adjust the light intensity to match the desired atmosphere.
