Zoo Med Combo Mini Deep Dome Clamp Lamp Fixture 2 x 5-1/2 Inch Deep DomesTwo fixtures in one to install different bulbs ideal for daytime and nighttime use. Polished aluminum dome increases the amount of light and UV emitted up to 30%. Includes easy on and off switches for safer, more convenient control of heating time. Deep dome extends beyond the lamp to prevent it from sticking out to protect you and your pals. Made for UVB, 24 hour heat lamps and daylight lamps, with no assembly or set up needed.