Zilla Dual Low Profile Fixtures provide necessary light and heat to terrariums without the bulkiness of standard domes. The Low Profile Dual Fixture houses two G9 sockets and can hold one of each bulb. Both fixtures come with spring clips that secure the fixture to any screen cover. Both fixtures also come with an inline cord switch to control the fixture. Bulbs are sold separately, allowing for customization of the needed heat and UVB. These fixtures provide a wide spread of heat and light and work perfect for any reptile.