suzanne, the bulbs for the HF3480 are "Philips MASTER PL-C 4P, 26 Watt - 26W / G24q-3 / 827" and are readily available at places [http://1000bulbs.com/product/4626/FC26-P26150.html|like this]. Sounds like Philips glued those into the bases, so may be a heatgun is in order to replace those. Take a look [http://www.candlepowerforums.com/vb/showthread.php?313001-Philips-HF3480-Bulb-%28a-fluorescent-replacement-%29|on here] for a bit more information. Now I want one just to tear it down and just because Philips says it can't be done:)) Take plenty of pictures and create a guide while you are fixing it.Hope this helps, good luck.