【3 Lighting Modes & 5 Brightness Levels】clip on aquarium light featured with 3 color light: red +blue LEDs, white LEDs and white +red +blue LEDs, each lighting color has 5 brightness dimming levels, meet the needs of different scenes. 【Timer & Memory Function】Small nano aquarium light with 3 time modes (3/6/12 hours) for choice. setting the time you want be, the fish tank clip lamp will turn on and off automatically every day. Even though power failure, once the power restored, the lamp turns on at previous setting color, brightness and lighting time no need to reset. 【Flexible Gooseneck & Simple Clip】This fish tank clip light has a 11.5 cm length of 360° flexible gooseneck tube you can easily adjust the aquarium light angle and direction. The plastic clip bracket with a screw for tightening, which securely for framed or frameless aquarium thickness up to 2 cm. 【Low-energy LED Bulbs】This small fish tank light with high-quality 5730 LED bulbs offer an adequate lighting, which suit for low-to-mid light level plant growth. Aluminum metal shell provides better heat dissipation effect, and the sealed PC splash guard can prevent water vapor from entering. 【Slim and Mini Size】The fish tank light is 15 cm long, nano aquarium led lamp spreads around 30 cm which suit for 20cm to 30 cm freshwater aquarium, not for saltwater use. Equipped with a 5V UK USB adapter.