Provide your turtles with an increased output of UVB and UVA light with the Zoo Med Deep Dome Lamp Fixture. On this unit, the extra long reflector dome prevents the lamp from sticking out, helping to ensure a better fit. Use Zoo Med’s UV and UVB 5.0 & 10.0 Compact Fluorescent bulbs up to 160 watts with this unit. The bottom diameter of this fixture is 8.5” and is ideal to use in combination with PowerSun UV Lamp.