Distinguishing T5 Bulb Type?

[BigCity]

Is there any way of determining a T5 bulb type if it's out of it's packaging? I bought a complete tank setup that came with the fixture and like 5 or 6 extra bulbs, but they only have plain white protective sleeves on them. Is there any way to determine what they are from the bulb? Didn't really see any writing/print on them any where?

 

[rtparty]

Is there any way of determining a T5 bulb type if it's out of it's packaging? I bought a complete tank setup that came with the fixture and like 5 or 6 extra bulbs, but they only have plain white protective sleeves on them. Is there any way to determine what they are from the bulb? Didn't really see any writing/print on them any where?

Should be labeled on one of the ends but if not, you will have to fire them up and see what they look like.

 

[BigCity]

Yeah, kind of what I figured. Just be able to tell between blue/actnic and the white. Just wasn't sure if I was missing something obvious.