Samyo 3 Mode Flexible Aquarium Clip Tank Lamp 28 LED White & Blue Light with Touchable Inductive Switch Can be used for aquarium lighting and other energy-saving lighting. Energy Saving, output power is only 2W. Soft arm can be adjusted by any angles and positions. Suitable for most of mini aquarium tank size 12-20 Inches. Touchable inductive switch with 3 Mode: Only white light on, only blue light on and all light on.