Zilla Pro Sol Fixtures combine the latest in reptile lighting technology into one sleek, modern fixture. Each unit features multiple heat sockets for UVA/UVB bulbs to create a steady gradient throughout the terrarium, as well as separate sockets for fully controllable day and night lighting - eliminating the need for multiple fixtures! Provides essential heat and light in one sleek, low profile design Full heat, UVA and UVB coverage for a healthy reptile Two cord switches for individual control of night and day lighting For use with high efficiency Zilla Mini Halogen and Mini UVA/UVB bulbs (not included) Customizable for tropical and desert reptiles A surface mounted LCD screen timer provides additional control of day and night settings and the 24-hour dedicated basking spot. The timer features a backup battery to maintain proper terrarium conditions even if the power goes out.Note: Bulbs and mounting clips sold separately.Pro Sol FixtureSpecifications:20" Fixture Dimensions: 20.75"L x 5.38"W x 1.75"H - Tank Size 10 Gallons or Larger30" Fixture Dimensions: 30.75"L x 5.38"W x 1.75"H - Tank Size 30 Gallon Breeder or Larger