Exo Terra Glo Dimming Elect Ballast， 30W</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Fits two fluorescent bulbs</li><li>Dims fluorescent tubes (dusk and dawn effect!)</li><li>Ideal for use with Exo Terra Repti Glo and other fluorescent bulbs</li><li>More energy efficient than conventional ballasts or light strips</li><li>No flickering; less stressful for reptiles and amphibians</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51Ufi9AjajL.jpg' noproxy></br>