Proper lighting is an important factor in successfully maintaining a planted aquarium. Using the right color of light will create and healthy plants. This light can provide the proper lighting that allows you to appreciate your aquarium. Feature - Color: White. - Material: Acrylic. - Size 19cm: About 19x19x5cm/7.48x7.48x1.97inch. - Size 29cm: About 29x29x5cm/11.42x11.42x1.97inch. - Size 39cm: About 39x39x5cm/15.35x15.35x1.97inch. - Lamp beads: 21pcs. - Power: 4.2W. - Wire length: 1.7M. - Suitable for fish tank: 50cm. - Voltage: 110/220-240V. - Full spectrum, simulated natural light, restore aquatic plant natural color. - High brightness light beads, bright and shiny light. - Easy to install and use, very beautiful. - No flickering, more pleased to your eyes. - Good waterproof performance design, suitable for use in fish tank. - Multi-purpose, it can be used inside or outside the fish tank.