Originally Posted by John N.
Not very serious, I justed noticed the stems moved towards the light, so it had a slight (very slight) V effect. You do notice the brightness of the light is just on the sides though and not as evenly spread in the center. For me this was distracting enough for me to try out the AH kit.
Although I like my 36 watt ah kit, I'm torn between recommending an AH kit over those two screw in bulbs. I had less problems in terms of tank maintenance with the screw in CFs than I currently do with the 36w kit. The only thing that puts AH over the top in my cases were that it provided an even spread of light, and also made the tank look 90% brighter.
I guess the main difference is $40.