Marina Aquarium Showcase Bulb, 25-Watt, 120-Volt, Blue Incandescent aquarium light bulb is long lasting and provide decorative highlights to aquarium plants and decorations The incandescent light bulb will also serve as a gentle heat source for turtles and reptiles Available in a blue color Measures 1-1/2-inch length by 1-1/2-inch width by 5-1/2-inch height This product weighs 0.10-pound