Add crisp, bright LED lighting to your freshwater aquarium instantly with the Aqueon LED Clip-On Light. This extra thin fixture easily attaches to framed or frameless tanks with a versatile mounting screw, and provides elegant, shimmering lighting with 21 bright white and blue LEDs. Quick 2-way soft-touch control (On/Off). Versatile mounting compatible with framed or frameless aquariums. 21 bright white & blue LEDs for shimmering illumination. Ideal for freshwater aquariums up to 20 gallons. Tip: As this light doesnt require an additional fixture, youll experience great savings compared to traditional aquarium lights!.