On the ‘Fluker's Ceramic Repta-Clamp Lamp with Switch 5.5-in, how long is the cord? And can this be used for aquatic turtles?

On the Fluker's Ceramic Repta-Clamp Lamp with Switch 5.5-in, the cord is approximately 4 feet long.
This lamp can be used for aquatic turtles. We recommend using a splash proof halogen bulb over water.