not really true
personally and i have owned a tek couple times, ati sunpower and currently have a ati powermodule, if i was to buy new i would get the tek elite, same reflective material 98% and the elite has active cooling now. will say this, none of the above compare to the build quality of the powermodule, it isnt a flimsy built unit. but on the downside and cant say on the teks but ati use's a single strand wire which isnt as good of a conductor as the braided wiring, after having a ballast go in my powermodule, i rewired the whole thing with branded wire. plus the single strand is too stiff and hard to get back into the fixture if you ever have to change a ballast.