I just saw a recent posting to the APD which suggested that there was more that one kind of t-8 bulb (?). It said something to the effect that the poster wasn't talking about the bulbs often found in 30" lengths labeled as T-8s. Isn't a T-8 bulb just a bulb with a 1" diameter, whereas a T-12 has a 1-1/2" diameter?!? Thanks much, Brian T. Forsythe crom at cris_com