The Aquascape Bullet Light is compact in size and has a powerful output that makes it an versatile fixture. Ideal for highlighting focal points and can be used in and out of water. The small compact design allows for installation in even the tightest spots. They are pre-wired for simple installation with a long bulb life and they can be used in or out of water. The Light output is equivalent to a 10-watt halogen light. They will not overheat when being used out of water. Transformer not Included.