Until now, only full-sized bulbs delivered the full Desert 50 UVB light (50 microWatts per second/cm2 at 12") that is essential for healthy bone development in desert reptiles, This fixture includes two Desert 50 UVB compact fluorescent bulbs, delivering top quality light in a footprint of less than 1/2 a square foot, providing full-spectrum light at a cost savings, Essential Desert UVB from compact fluorescent fixtures, Flattering high-output illumination for smaller terrariums, Full strength lighting consumes only 9 Watts per bu lb, Keep a compact desert habitat as healthy as all outdoors, Dimensions: 13, 25"L x 5, 75"W x 2, 25"H, SKU: RYLHC4791