Zoo Med ReptiSun 5.0 UVB Mini Compact Fluorescent Replacement Bulb is a 26-watt bulb designed to provide UVB lighting for reptiles. The bulb is manufactured by Zoo Med and comes with a manufacturer warranty/rebate. The model number of the bulb is FSC-5. It is a new item and comes in its original packaging. The bulb is suitable for use in reptile supplies and is specifically designed for use in terrariums.