This LED waterfall features a serene waterfall design and can be set to 8 different modes, including color-alternating. Powered by 3x AA batteries, this light is easy to install and can be used with filtration systems with 530-3,000 gal./h flow rates. Price drops from $51.48 to $19.98. Shipping is free over $35 or adds $6.99 or select in-store pickup to avoid the shipping fee.