Amzdeal Aquarium Fish Tank Light LED Underwater Bubble Light (24 Inch Blue) Safety low voltage 12V DC design, safe for your fish and yourself. Two suction cups on the bottom of the light, can be fix on the appropriate location of tank buttom tightly. Easy to install: self-weighted, quick assemble and install in your aquarium, suitable for fresh and saltwater aquarium. Low energy consumption & Environmental friendly. Great waterproof performance. Ideal for the home, dorm room, or office.