The bulb or "tube" size is T8, but the light is a white with a hint of blue. There's not a sign of purple to be found. Same thoughts or does that change the game? About your suggestions, are those just floro tube shop lights? Are they lights with the correct spectrum? If so, where can I find the cheaper/better alternative? Also, they were only $9.75 a piece. I hope this is all the info required.