Zoo Med's Mini Deep Dome Lamp Fixture features a ceramic socket for use with lamps up to 100 watts. The deep dome extends beyond the face of the lamp, preventing the lamp from sticking out of the end of the dome fixture. The polished aluminum surface inside the dome increases light and heat output up to 30% compared to fixtures with a white surface inside the dome. Zoo Med's Mini Deep Dome can be used with basking spot lamps, daylights, nightlights, infrared heat lamps, halogen bulbs and Zoo Med's PowerSun up to 100 watts. Includes On/Off switch. 5.5" dome.