dude, all I am saying is this: helios had a lousy rep for their pc fixtures. I'd be skeptical about the reliability and bulb quality of anything else they make. That's it. Maybe they've turned "a new corner", but who knows w/o trying? I personally don't trust 'em, but maybe your experience will be different. I do know this about T5s though--w/o the right reflector there is a BIG difference in the amount of light you get. I've played w/a lux meter myself and come pretty close to the results that Sunlight supply posted on their website....the reflector does matter....I haven't seen your fixture so I can't really comment on the design. I did see something that ASM was pushing earlier (I believe that ASM is the entity behind Helios) and it was really electrically noisy, and the bulbs were a bit sloppily made (sloppy ends, stuff rattling in the tubes), but who knows, maybe it was a prototype....