I replaced my bulb (not cage) also. I purchased mine from replacementlightbulbs.com It is a genuine Ushio branded bulb, like the original OEM bulb. This one however says NSH160D, the original said NSH160HO. Not sure what the difference is but this bulb is nice and bright, my old bulb said 1500 hours, but I bought a refurb and I'm not sure if the bulb was new when shipped to me. Anyway it looks like it did when I first received my projector. I will need to tweak the calibration some, seems like the skin tones might be a little too red. I may need to turn down the saturation some also. Thanks to all who gave advice on the lamps and bulbs. Unless something happens to the projector, I intend to keep it, I have not seen anything that will throw a nice image like the Pro8100 without spending a quite a lot of money. I see some brighter projectors and ones that have 3D, but none that have the color rendering and pleasing sharpness that the Viewsonic does.