I bought this FML27 bulb for my Sharper Image "Bright as Day" lamp and it does work in that lamp.  The lamp has a dimming feature, but the Eiko bulb doesn't do a good job with this - it will dim somewhat and then go out at lower settings.  As I never used the dim feature, it did not matter to me.  The light from the bulb is fine and matches that of the original that Sharper Image provided.