Zoo Med's Aquatic Turtle Lighting Combo Includes: Mini Deep Dome: Ceramic socket: for use with lamps up to 100 watts. Polished aluminum dome for maximum light and heat output. Deep Dome extends beyond the face of the lamp, preventing the lamp from extending outside the face of the dome. Turtle Tuff Splashproof Halogen Lamp 50 watt: Heavy dusty splash proof halogen lamp. For use with all types of aquatic turtles or other water based terrarium animals. Long lasting: average 2,500 hour bulb life.